Metabolism plays a big role in our health, it’s not just about helping your digestive system work smoothly, but the way your body breaks down the food and helps nutrients get absorbed into the body that matters. But often due to one reason or the other, your metabolism can slow down, which then causes issues with people. Many people think that the reason they may be gaining weight could be because of their poor metabolism, so how does one go about fixing this issue and how do you even know that the fault lies with your metabolism.

To understand why your metabolism may be slowing down, we must understand what role it exactly plays. Metabolism is the process your body uses to turn food into energy. It's essential for everything from breathing and digestion to keeping you warm. Several things affect how fast your metabolism works, including your genes, health, and lifestyle. A slow metabolism means your body burns fewer calories, which can lead to tiredness, dry skin, weight gain, and cravings.

Why Does Your Metabolism Slow Down?

There can be many reasons why your metabolism may be slowing down. You inherit some of it, and it tends to slow down as you age, often due to changes in your body and less muscle. Men and women have different metabolisms because of body size, makeup, and hormones. What you eat matters too – not enough healthy food or a very low-calorie or high-fat diet can slow it down. A lazy lifestyle, lack of sleep, and stress can also make your metabolism sluggish. Certain health problems like diabetes or an underactive thyroid, and even environmental factors, may also play a role.

Signs You Need To Improve Your Metabolism

While these are some common signs, it is best to visit a healthcare professional and ask for their opinions before you try a solution. There are many underlying reasons as to why you are experiencing slow metabolism, it can also be a side-effect of some medicine. A healthy lifestyle goes a long way, especially for people who already have digestive issues, kidney or even mental health issues like stress and anxiety.

Constant Fatigue

Feeling tired all the time, even without a good reason, could mean your metabolism is slow. A slow metabolism means your body breaks down food into energy slowly, leaving you with low energy levels. You might feel sluggish or get tired easily throughout the day. Changes in what you eat or your body composition (how much fat and muscle you have) can also make you feel more tired.

Dry Skin

Dry skin is common in winter, but if you have it all the time, it could be a sign of a slow metabolism. Thyroid hormones help control your metabolism and also keep your skin hydrated. If your thyroid isn't working right and your metabolism is slow, your skin might get very dry.

Weight Gain

If you're eating healthy and exercising but still gaining weight, a slow metabolism could be the problem. A slow metabolism doesn't turn food into energy quickly, so you burn fewer calories. Extra calories are stored as fat, making it hard to lose weight.

Feeling Cold

Feeling cold even when it's not cold outside can be a sign of a slow metabolism. Your body generates heat through metabolism. If your metabolism is slow, your body temperature might be lower. Some studies show that people with an underactive thyroid or obesity may have lower body temperatures because of a slow metabolism. This can be because of problems with thyroid hormones, which help your body make heat.

Food Cravings

Craving sugary or fatty foods can be a sign of a slow metabolism. Studies show that cravings are related to metabolic health. This is especially true for people who don't eat enough healthy foods, have bad eating habits, or have low muscle mass and high fat mass. Cravings might also mean your body isn't getting enough energy from the food you eat, so it wants more energy.

Mood Swings

Everyone has mood swings sometimes. But if you have them often, it could be from a slow metabolism. Low energy and hormone problems that come with a slow metabolism can make you irritable and frustrated. Some older research also suggests a link between mental health issues and a slow metabolism.

Digestive Problems

Digestion and metabolism are connected. Digestion breaks down food, and metabolism turns it into energy. If your metabolism changes, like slowing down, it can affect your digestion. A slow metabolism can cause constipation, bloating, or diarrhea.

Plastic containers have been discouraged for a long time now, especially for heating food or storing hot food. Studies have associated this habit with a heightened risk of cancer, but now an expert has specifically spoken about black plastic containers and what makes them worse for you. According to Dr Rakesh Kumar Sharma, Senior Consultant Medical Oncologist at M | O | C Cancer Care & Research Centre, Gurugram, cooking or heating food in black containers could be very harmful to your body. Read on to find out how.

Dr Sharma, in an interview with Health and Me, said that cooking food in black plastic receptacles could lead to greater amounts of certain chemicals making their way into your body; however, there currently exists no scientific evidence confirming that this daily activity increases your risk of cancer.

Why is black plastic worse than others?

Dr Sharma explained that black takeaway containers usually consist of recycled plastics, such as e-waste, and can contain flame retardants, BPA, phthalates, etc. When heated in contact with food, especially if the food is hot, fatty, or acidic, more chemicals could potentially make their way into the food from the container. In this way, it may, over time, heighten your risk of developing a malignant tumour.

Black containers are coloured using carbon black, which is included in Group 2B of possible human carcinogens according to IARC, as shown in both animal and limited human research. Moreover, recycled black plastics could contain polycyclic aromatic hydrocarbons and decaBDE, which have shown carcinogenic effects in experiments. This makes black plastic containers worse than other coloured counterparts. Yet, heating food in a plastic container of any colour is not deemed safe.

Do studies verify the side effects of heating food in plastic containers?

Experimental studies conducted in laboratories on microwaveable plastic receptacles reveal the migration of tens of chemicals and millions of microplastics per litre of the food simulant. However, a recent study in 2024 reported that containers labelled as microwave-safe in Korea adhered to contemporary safety standards for these levels, and total exposure fell within safe limits.

Leading cancer associations have confirmed that the usage of plastic packaging, even in microwave applications, has not been linked with increased cancer risks in humans, although there is ongoing research in areas such as black plastics. However, precautionary measures are suggested by experts as a better strategy due to the difficulties of directly studying long-term, low-level exposure to chemical compounds.

How to reduce cancer risk?

When it comes to reducing cancer risk, most doctors recommend quitting smoking and limiting alcohol intake. However, Dr Sharma listed some basic kitchen and eating habits that may come to your rescue:

1. Avoid cooking food in black plastic packaging, particularly if the food is oily or acidic.
2. Move hot food into glass, ceramic, or stainless steel containers for reheating.
3. Only use microwave-safe containers and discard any broken plastic containers.

Most young men assume that if there is no pain, there is no serious problem. Unfortunately, many important testicular conditions, especially testicular cancer, often begin as a painless lump, swelling, or enlargement of one testicle. Because there is no pain, men tend to ignore it, thinking it is due to exercise, minor trauma, tight clothing, cycling, or temporary swelling. Embarrassment and reluctance to discuss genital symptoms also contribute to delay.

Dr. Chandan M. N, Consultant Urologist, Andrologist, Uro-Oncologist & Renal Transplant Surgeon, Apollo Hospitals, Sheshadripuram, Bangalore, spoke about the pain conundrum. The expert said that when it comes to testicular health, absence of pain must not be a reassuring factor.

Pain is usually seen as a warning signal, but in testicular disease, absence of pain should not reassure patients. Testicular cancer is one of the most common cancers in young men, particularly between 15 and 35 years of age, and it can progress quickly if diagnosis is delayed. However, when detected early, it is also one of the most curable cancers.

What are the common signs men may overlook in day-to-day life?

The most commonly overlooked sign is a painless lump or swelling in one testicle.

Sometimes the change is subtle; a testicle may simply feel slightly harder, heavier, larger, or firmer than before. Many men also ignore a dragging sensation, heaviness in the scrotum, or a dull ache in the groin or lower abdomen because these symptoms are mild and not severe enough to disrupt daily life.

Other signs that should not be ignored include sudden fluid collection in the scrotum, change in the shape or size of one testicle, unevenness between the two testicles, persistent discomfort, or a feeling that something is different. Some men may also notice back pain, breast tenderness, or unexplained swelling if the disease has spread. Importantly, not every testicular lump is cancer. Conditions such as hydrocele, varicocele, spermatocele, orchitis, or hernia can also present with swelling or heaviness. But the only safe approach is to get examined rather than assume it is harmless.

How to do a simple self-examination at home?

Young men should know what is normal for their own body. A simple self-examination once a month, ideally after a warm shower when the scrotal skin is relaxed, can help detect early changes.

Men should gently feel each testicle for lumps, swelling, hardness, change in size, or heaviness. Familiarity with one’s normal anatomy makes it easier to notice when something changes. Any new lump, swelling, change in shape, or persistent discomfort should be evaluated promptly by a doctor. Usually, a physical examination and scrotal ultrasound are enough to identify the cause. Early medical advice can differentiate a harmless condition from something serious and, in the case of testicular cancer, can make the difference between simple treatment and advanced disease.

Malaria is widely known as a mosquito-borne disease that causes fever, chills, and body aches. But what many people don’t realize is that in severe cases, it can also affect the heart.

Malaria is caused by parasites belonging to the Plasmodium genus. It may cause complications beyond the bloodstream. In some cases, this may happen in severe malaria, where either the diagnosis or treatment is late.

How Malaria Infection Affects The Heart

Speaking to HealthandMe, Dr. Ravi Prakash, Senior Consultant Cardiology, PSRI Hospital, Delhi, noted that malaria affects different parts of the body, depending on the severity and the patient's immunity.

"In severe malaria cases, the parasite that causes malaria infects the red blood cells, making them sticky. When these stick together, the cells block the flow of blood in smaller blood vessels, limiting oxygenation of important organs, including the heart," Dr Prakash explained.

The condition may then result in myocarditis, arrhythmias, or heart failure. Although these complications rarely affect the heart, they require prompt medical intervention.

Further, Dr. Rakesh Pandit, Senior Consultant & HOD, Internal Medicine, Aakash Healthcare, highlighted that malaria can put stress on the heart either directly or indirectly.

It can lead to inflammation of the heart and result in chest pains, fatigue, or arrhythmia.

"Patients suffering from severe malaria may develop tachycardia or, in worst-case scenarios, experience heart blockage," Dr. Pandit told HealthandMe.

The Role of Anemia

Furthermore, malaria infection may limit the blood flow to the heart by increasing the stickiness of the blood, thus blocking small blood vessels.

"Anemia associated with malaria can increase the load on the patient's heart," Dr Pandit said.

Fever, dehydration, and hypoxia further increase cardiac stress in malaria patients, who may end up having their pre-existing heart conditions unmasked.

Malaria: Early Signs Of Heart Damage?

Early detection is important. Besides classic malaria symptoms such as fever, sweats, shivers, headaches, and tiredness, any unusual symptoms such as chest pains, difficulty breathing, rapid heartbeats, or excessive weakness must be considered carefully.

"These could be signs of organ damage caused by the disease, which means early diagnosis and treatment are vital. Blood tests will be conducted to identify malaria parasites in your body," Dr. Prakash said.

Malaria And Heart: Who Is At More Risk

Some individuals are more susceptible to contracting malaria, which increases their chances of developing complications from the disease.

These include

• children,
• pregnant women,
• the elderly,
• immunocompromised patients.

"People who have underlying diseases may develop heart-related problems due to the malaria infection," Dr Prakash said.

Moreover, travelers to malaria-endemic areas without adequate protection from the disease are also likely to be affected.

How To Prevent?

The best method to avoid contracting malaria is to take preventive measures.

• Individuals must protect themselves from mosquito bites.
• Applying insect repellents, sleeping under mosquito nets, and covering your arms and legs when you go out are effective ways to shield yourself from being bitten.
• Proper hygiene and sanitation practices are necessary to prevent mosquitoes from reproducing.
• Having a good general health status is another preventive measure. Your immune system must be able to combat invading agents.