The global challenge of HIV/AIDS remains one of the most pressing public health issues today. According to the latest data from UNAIDS, around 38.4 million people worldwide are living with HIV/AIDS, underlining the need for not only medical intervention but also comprehensive awareness, education, and social change. Despite the significant strides made in treatment and prevention, the confusion surrounding the relationship between HIV and AIDS still persists.

Young people have become influential advocates in the fight against HIV/AIDS. Research from UNICEF shows that youth-led initiatives can lower HIV transmission rates by as much as 45% in targeted communities. These young activists utilize digital platforms and peer-to-peer education to dispel myths, promote safe practices, and foster supportive environments for those affected by HIV/AIDS.

Dr Gowri Kulkarni, an expert in Internal Medicine, explains that while the terms HIV and AIDS are often used interchangeably, they are distinctly different. "HIV (Human Immunodeficiency Virus) is a virus that attacks the immune system, whereas AIDS (Acquired Immunodeficiency Syndrome) is a condition that occurs when HIV severely damages the immune system," she clarifies. To understand the implications of these differences, it's important to explore the fundamental distinctions between the two.

1. HIV is a Virus; AIDS is a Syndrome

HIV is the virus responsible for attacking the body’s immune system, specifically targeting CD4 cells, which are crucial for the body’s defense against infections. As HIV progresses, it destroys these cells, weakening the immune system over time. If left untreated, this continuous damage can lead to AIDS.

AIDS, on the other hand, is a syndrome, not a virus. Dr Kulkarni further elaborates that AIDS is a collection of symptoms and illnesses that emerge when the immune system is severely compromised due to prolonged HIV infection. It represents the most advanced stage of HIV, and is characterized by very low CD4 counts or the onset of opportunistic infections like tuberculosis, pneumonia, or certain cancers.

2. Not Everyone with HIV Develops AIDS

A key distinction to remember is that not everyone with HIV will progress to AIDS. Thanks to advancements in medicine, particularly antiretroviral therapy (ART), individuals living with HIV can manage the virus and maintain a healthy immune system for many years, or even decades, without ever developing AIDS. ART works by suppressing the virus to undetectable levels, effectively preventing the damage HIV would otherwise cause to the immune system.

Without treatment, however, HIV progresses through three stages:

- Acute HIV Infection: This stage occurs shortly after transmission and may include symptoms like fever, fatigue, and swollen lymph nodes.

- Chronic HIV Infection: Often asymptomatic or mildly symptomatic, the virus continues to damage the immune system but at a slower rate.

- AIDS: This is the final stage, marked by severe immune damage and the presence of infections that take advantage of the compromised immune defenses.

3. HIV is Transmissible; AIDS is Not

Another key distinction between HIV and AIDS is the way in which they are transmitted. HIV is highly contagious and can be transmitted through the exchange of bodily fluids such as blood, semen, vaginal fluids, and breast milk. It is primarily spread through unprotected sexual contact, sharing needles, or from mother to child during childbirth or breastfeeding.

AIDS, however, is not transmissible. It is not a disease that can be passed from one person to another. Rather, AIDS is the result of untreated, advanced HIV infection and is a direct consequence of the virus’s damage to the immune system.

4. Diagnosis Methods Differ

HIV and AIDS are diagnosed through different methods. HIV is diagnosed through blood tests or oral swabs that detect the presence of the virus or antibodies produced by the immune system in response to the virus. Early detection of HIV is crucial, as it allows for timely intervention and treatment, which can prevent the virus from progressing to AIDS.

AIDS, on the other hand, is diagnosed using more specific criteria. Dr Kulkarni notes that the diagnosis of AIDS is made when the individual’s CD4 cell count falls below 200 cells/mm³, or when opportunistic infections or certain cancers (such as Kaposi's sarcoma or lymphoma) are detected. Diagnosing AIDS involves a more thorough assessment of the individual’s immune function and overall health, as opposed to just the detection of HIV.

5. Treatment Goals Are Different

The treatment goals for HIV and AIDS differ significantly, although both involve antiretroviral therapy (ART). For HIV, the primary treatment goal is to suppress the virus to undetectable levels, thus maintaining a strong immune system and preventing further transmission of the virus. People living with HIV can often live long, healthy lives if they adhere to ART.

For individuals diagnosed with AIDS, the treatment plan becomes more complex. While ART remains an essential part of managing the virus, treatment for AIDS also focuses on addressing the opportunistic infections and secondary health complications associated with severe immune suppression. The goal of treatment for AIDS is not only to manage the HIV virus but also to improve the quality of life and extend survival by treating these secondary health issues.

Role of Community Engagement in Combatting HIV/AIDS

While the medical community has made great strides in managing HIV, the battle to curb its transmission is also a social and cultural issue. Dr Daman Ahuja, a public health expert, highlights that HIV/AIDS awareness and education are vital to reducing transmission rates and supporting those affected by the virus. "Young people, especially, have become key advocates in the fight against HIV/AIDS," says Dr Ahuja. "Research from UNICEF shows that youth-led initiatives can lower HIV transmission rates by as much as 45% in targeted communities."

Additionally, grassroots activism plays a significant role in raising awareness and addressing stigma. As the World Health Organization reports, community-based interventions have been proven to increase HIV testing rates and improve treatment adherence, which are crucial in the fight against the pandemic.

The ultimate goal of organizations like UNAIDS is to eliminate the HIV/AIDS pandemic by 2030. Achieving this requires global collaboration, from medical treatment advancements to public health strategies, education, and advocacy. Dr Kulkarni’s insight underscores the importance of early detection, treatment adherence, and community support in the fight against HIV/AIDS.

Dr Gowri Kulkarni is Head of Medical Operations at MediBuddy and Dr Daman Ahuja, a public health expert and has been associated with Red Ribbon Express Project of NACO between 2007-12.

There are many patients with CKD and CKD touches more than just the kidneys. CKD also influences parts of the body and as kidney function falls changes in the body can affect the brain. This may raise the chance of memory problems trouble concentrating and other types of impairment. For people living with CKD, those whose disease is advanced protecting cognitive health can become an important part of overall care.

CKD can arise from causes with diabetes as a leading one. In some groups diabetes accounts for than half of CKD cases. When diabetes meets CKD, the risk of vascular disease rises. This disease builds fatty deposits inside blood vessels. If those vessels feed the brain blood flow can drop. Reduced brain blood flow can lead to problems and raise the risk of dementia.

Waste Build-Up And Electrolyte Changes May Affect Thinking

Another important factor is the build‑up of waste in the blood. Healthy kidneys waste and excess substances. When CKD lowers kidney function these substances linger. The lingering waste can disturb brain function. Symptoms may include trouble paying attention, slower thinking, confusion or memory problems.

Electrolyte disturbances can also play a role especially when CKD changes the balance of minerals in the body.

Hyponatremia or abnormally low levels of sodium in the blood is relatively common in people with CKD. It can disturb brain function.

Depending on severity and how fast it appears hyponatremia can cause confusion, difficulty concentrating, drowsiness and in cases more serious neurological symptoms.

Also read: Diabetes Linked To 55% Risk Of Kidney Disease, Heart Failure Or Death Within 10 Years: Study

How Dialysis And Treatment History Can Influence Cognitive Health

Treatment‑related factors may also be relevant for some patients.

In the past dialysis patients who received aluminium‑containing medicines, such as some antacids or phosphate‑binding preparations faced a risk of aluminium build‑up. High levels of aluminium were linked to problems, including cognitive impairment. Today dialysis practices and medicines have cut this risk dramatically so aluminium is now an issue rather than a common cause of cognitive problems in dialysis patients.

Why Early Recognition Of Cognitive Changes Matters

As CKD moves forward into advanced stages the risk of cognitive impairment grows. Many factors can act together: disease, metabolic and electrolyte changes, anaemia, inflammation, heart complications and the build‑up of toxins that healthy kidneys would normally flush away.

Not every person with CKD will develop dementia. Cognitive changes should not be brushed off as normal ageing. New problems, with memory, concentration orientation or daily tasks need to be talked about with a doctor.

Early recognition is important because some of these factors can be treated or reversed.

Keeping diabetes and blood pressure under control managing heart risk factors correcting electrolyte imbalances and getting kidney care all help protect both kidney and brain health.

Plastics are everywhere today. It is woven into our clothes, tucked into children's toys, used in food containers, and found in almost every household products. A new analysis has raised concerns about the chemicals used to make these products and the health hazards due to constant exposure.

According to an investigation reported by CNN, nearly 93% of known plastic chemicals used in everyday products were classified as posing a high risk to human health. The analysis looked at plastics used in food-contact materials, toys, clothing and textiles, household products, and hygiene and medical products.

The findings highlight how widespread exposure to hazardous chemicals can affect our health and how much remains unknown about their long-term effects.

Exposure To Plastic Chemicals

A researcher at Environmental Justice Foundation, Naima Fenderl’s Poison Plastics: How Chemicals in Everyday Plastics are Harming Your Health released recently and revealed astounding facts about plastic chemicals.

She said, “We looked at what these plastic chemicals can do to the body along with exposure levels to calculate overall health risk.” The analysis found that:

• Nearly 92% of chemicals in food-related plastics were considered high risk.
• Almost 89% of children's toys contained high-risk plastics.
• Around 93% of textiles and clothing involved dangerous chemicals.
• More than 92% of common household products contained high-risk chemicals.
• Nearly 93% of hygiene and medical plastics contained potentially dangerous chemicals.

The chemicals are not necessarily the plastic itself. Many are additives that are used to make plastics flexible, durable, heat-resistant, or less likely to catch fire.

Also read: Botox And Fillers: UK Watchdog Says Clinics Should Check Mental Health Before Injecting

Health Problems Caused By Plastic Chemicals

Some plastic chemicals have been linked to cancer, genetic changes and problems affecting the hormonal, reproductive and organ systems. Among the chemicals of concern are bisphenols, phthalates, and PFAS, which can be used in different plastic products.

Some of these chemicals can interfere with the body's endocrine system, which controls hormones involved in metabolism, reproduction, growth, and development.

The concern is important for children and during pregnancy because hormonal systems and organ development may be more vulnerable to certain chemical exposures.

The report also highlighted the challenge of lack of sufficient data to certainly assess health risks posed by these plastic chemicals. Almost 80% of the 3,552 chemicals in plastics people often use everyday lacked sufficient data to understand health risks.

“We simply do not have a clue what harm those chemicals might be causing us and our kids,” Dr. Philip Landrigan, director of the Global Observatory on Planetary Health and the Program for Global Public Health and the Common Good at Boston College told CNN.

He added, “We don’t even know the names or composition of a lot of the chemicals that are in consumer products — the chemical industry presumably has that information, but it’s not publicly available.”

Also read: World Environment Day 2025: Everyday Habits That Are Harming The Earth And Your Health

Microplastics Are Part Of The Problem Too

Chemical exposure is only one part of the plastic problem. Tiny plastic particles, known as microplastics, and even smaller nanoplastics, can also enter our bodies through food and water.

University of Columbia released an analysis of plastic bottled water based on a laser-based highly sensitive imaging technique. It found an average of around 240,000 plastic particles per litre, with most nanoplastics.

These particles can come from the bottle, the cap, manufacturing, and handling. Opening and closing the bottle repeatedly can also create friction between the cap and bottle neck, releasing tiny plastic fragments.

Larger particles are generally expected to pass through the digestive system. But nanoplastics are small enough to cross biological barriers.

Research has found that plastic particles can reach the circulatory system and other tissues, but scientists still do not know exactly which particles cross these barriers most easily, how much accumulates in the body or what level of exposure causes harm.

What Is The Solution?

Quitting using plastic entirely is not practical for most people. Instead, reducing avoidable exposure could be a sensible approach.

Avoid heating food in plastic containers, particularly when the container is not designed for high temperatures. Using glass or stainless steel for hot food and drinks can also reduce reliance on plastic food-contact materials.

Filtration or boiling of drinking water may help reduce some microplastics. But doctors believe that heat may only alter some plastic particles, not destroy them completely.

It's hard to find anyone these days whose day doesn't involve a phone, a laptop, or a tablet at some point, often for several hours. We work off them, study off them, unwind by scrolling or watching something on them. All that convenience comes at a cost, though, and it isn't limited to the eyes. Sleep, hearing, posture, general well-being- screens end up touching all of it.

Long Screen Hours Can Strain Your Eyes

Eye strain is usually the first thing people notice. Stare at a screen close-up for long stretches, and the eyes start to dry out, burn, blur, and headaches creep in along with trouble focusing. Part of the problem is that we simply blink less when we're absorbed in something on a screen, which makes the dryness worse.

A few small adjustments help, keeping the screen at a reasonable distance, not having the brightness too high, and something I often recommend to patients: the 20-20-20 rule. Every 20 minutes, look at something roughly 20 feet away for 20 seconds. It sounds minor, but it eases the strain.

Also read: Salt Stomping Before Bed: Does This Viral TikTok Sleep Hack Actually Work?

Long Hours With Earphones Can Affect Hearing

Screens affect more than eyesight. Long hours spent wearing earphones, particularly at high volumes, can gradually affect hearing. The risk depends on both the volume and the duration of exposure.

Keeping the volume at a comfortable level and taking regular breaks from earphones is a simple enough habit to build. Persistent ringing in the ears, muffled hearing or difficulty following conversations should not be dismissed as fatigue and should be evaluated by a doctor.

Screen Use Can Disrupt Sleep

Sleep is one of the most overlooked casualties of excessive screen use. Phones and laptops used late at night keep the brain stimulated when the body should be winding down for rest. Bright light from screens, along with constant notifications, social media and work-related activity, makes it harder to unwind and fall asleep. Poor sleep, in turn, contributes to daytime fatigue, reduced concentration and irritability.

None of this means giving up technology altogether. It comes down to building healthier digital habits, avoiding screens close to bedtime, keeping phones away from the bed, taking regular movement breaks during work, and spending some time outdoors. For people working at computers for extended periods, maintaining good posture and changing position regularly matters just as much.

Also read: Weekend Workouts: Why Sudden Intense Exercise May Put Stress on Your Heart

There Is No Single ‘Safe’ Number Of Screen Hours

Clinical care today increasingly looks beyond treating disease to identifying everyday lifestyle factors that contribute to long-term health problems, and screen exposure is a good example of this. There isn't a single number of hours that is automatically harmful for every adult; the impact depends on what the screen is being used for, the intensity and duration of exposure, and whether it is interfering with sleep, physical activity or daily functioning.

Being screen-smart, rather than screen-free, is really the aim. Regular breaks, sensible volume levels, better sleep routines and more movement can go a long way in protecting the eyes, hearing and overall health, while still letting technology remain a useful part of modern life.

If symptoms such as persistent eye discomfort, hearing changes, recurrent headaches or ongoing sleep difficulties continue despite cutting down on screen time, it's worth seeking professional medical advice rather than relying on lifestyle adjustments alone.