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Fasting may reset your body, but can it reset your mind? The new trend of dopamine fasting claims it can. And wait, there's more. This trend also works against dopamine resistance, implying that things that did not make you happier before will now do. You see, dopamine is a part of the brain's reward system and plays an important role in your pleasure reception. While this neurotransmitter is not directly linked to an individual's happiness, it triggers feelings of satisfaction, motivation and pleasure.
However, a person can also reach a stage of dopamine resistance if they continue to indulge in activities that trigger its frequent or constant release. In this case, the individual stops feeling the impact of this neurotransmitter and thus, does feel good or happy.
So does dopamine fasting work?
Dopamine fasting is a practice where individuals limit their exposure to activities or stimuli that typically provide a surge of dopamine. The idea behind dopamine fasting is to reset or recalibrate the brain's reward system. This is usually done by abstaining from gratifying things or experiences like social media, junk food, and even sex. Proponents of dopamine fasting argue that continual overstimulation from digital devices, social media, and easily accessible indulgences has numbed our brain's reward pathways. By regularly denying ourselves these dopamine triggers, the idea claims, we might restore our ability to acquire fulfilment from life's basic pleasures.
Having low levels of dopamine can make you less motivated and excited about things. In Parkinson's disease, there is not enough dopamine in the areas of the brain important for movement. This leads to problems with muscle stiffness and movements such as walking.
The symptoms of a dopamine imbalance depend on what is causing the problem. They include physical symptoms such as:
Adjusting dopamine levels is complicated, as it is involved in many different roles in the brain. Your doctor won't measure your dopamine levels directly, and there is no simple test to measure it. Your symptoms will be the clues that tell your doctor if you have too much or not enough dopamine. They will then prescribe medicines to adjust your dopamine level, based on your symptoms, and make adjustments based on how your body responds and how you feel.
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When John Cena started noticing blurry vision, he assumed it was simply part of getting older. But the worsening eyesight was also accompanied by redness, itchiness and crusting around his eyes.
“I had a lot of redness and itchiness, and every once in a while, waking up with eye crusties and stuff. At the same time, given my age — I'm 49 now — my vision was going a little bit, so I just figured it was par for the course. But because my vision was going, I needed to see if I needed glasses or prescriptions.”
Until then, Cena had delayed getting his eyes checked. He believed that the symptoms were caused by bright lights, excessive screen time or ageing.
However, an eye examination gave him a surprise. Cena learned that his symptoms were caused by Demodex blepharitis, a condition he says he had never heard of.
“Diagnosed with Demodex blepharitis, which I didn't even know existed.”
Also read: Study Decodes Why COVID Survivors Continue To Suffer Vision Problems
Demodex mites are tiny, eight-legged organisms that live naturally on human skin, particularly around hair follicles. Measuring just 0.15 to 0.4 millimeters, they are invisible to the naked eye but are present on the skin of almost every adult.
These microscopic mites feed on sebum (the skin's natural oil) and dead skin cells, helping remove accumulated debris under normal conditions.
Demodex mites are most active at night. They emerge from hair follicles after sunset because ultraviolet (UV) light is harmful to them. While people sleep, the mites feed, crawl and reproduce on the skin's surface.
They are also believed to be stimulated by melatonin, the hormone that helps regulate sleep, creating a unique relationship between humans and these naturally occurring organisms.
Although harmless in small numbers, Demodex mites can cause problems if they multiply excessively—a condition known as demodicosis.
According to Dr. Richard Locksley, professor of medicine at the University of California, San Francisco, an overgrowth of Demodex mites can contribute to:
Read More: Wegovy More Likely To Cause Rare Blindness Than Ozempic And Other Similar Drugs, Recent Study Finds
People with weakened immune systems are particularly vulnerable because their bodies may be less able to control mite populations. In addition, inadequate sleep may increase oil production, providing more nourishment for the mites.
For most healthy people, Demodex mites are a normal part of the skin microbiome and are not considered harmful. Problems generally arise only when their numbers increase significantly.
To help reduce the risk of overgrowth:
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A stroke can happen suddenly and without warning, making every minute count. The first 60 minutes after the onset of stroke symptoms are crucial because timely medical treatment can help reduce brain damage and improve recovery.
A stroke happens when the blood flow to an area of the brain is cut off due to either the blockage of a blood vessel supplying that area or the bursting of the said blood vessel. Without adequate blood flow, brain cells are deprived of oxygen and nutrients and begin to be damaged within minutes.
The first hour after a stroke is focused on rapid assessment and treatment. Once the patient reaches the hospital, doctors evaluate the symptoms, determine when they started, and perform an urgent brain scan, usually a CT scan, to identify the type of stroke.
This step is important because treatment depends on whether the stroke is caused by a blocked artery (ischemic stroke) or bleeding in the brain (hemorrhagic stroke). For eligible patients with an ischemic stroke, clot-dissolving medication or a procedure to remove the clot may be considered.
Although treatment windows may extend beyond the first hour for some patients, reaching the hospital as early as possible offers the greatest chance of saving brain tissue. In most patients, clot-dissolving medication is given within 4.5 hours of symptom onset, while selected patients may be eligible for treatment up to 9 hours. Mechanical clot removal is generally performed within 6 hours, although carefully selected patients may benefit from the procedure up to 24 hours after symptoms begin. However, earlier treatment is associated with better protection of brain tissue and improved outcomes.
Recognizing stroke symptoms early can help save valuable time. The BEFAST acronym is a simple way to remember the common warning signs:
B – Sudden loss of balance or coordination
E – Sudden vision loss or changes in one or both eyes
F – Face drooping
A – Arm weakness
S – Speech difficulty
T – Time to call emergency medical services
Other symptoms may include sudden loss of vision, dizziness, difficulty walking, numbness on one side of the body, confusion, or a sudden, severe headache.
During a stroke, brain cells continue to be damaged as blood flow remains interrupted. Delays in reaching the hospital can limit treatment options and increase the risk of long-term disability. Seeking medical care as early as possible gives doctors the best chance to provide appropriate treatment.
If you notice stroke symptoms in yourself or someone else, do not ignore them or wait for them to improve. Call emergency medical services immediately and note the time the symptoms first appeared, as this information helps doctors decide the most suitable treatment.
The golden hour is a critical window during which timely action can significantly improve outcomes. Recognizing the signs of stroke and seeking immediate medical care can make a meaningful difference in recovery.
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Massive wildfires have ravaged several parts of Canada and other regions of the world, filling the air with hazardous smoke. This has triggered health warnings far beyond the fire zones.
While most people experience immediate breathing problems during and after wildfires, experts say that some health effects can persist long after the skies clear.
Wildfire smoke is composed of harmful gases and microscopic particles known as PM2.5. These tiny particles are small enough to travel into our lungs and enter the bloodstream, where they can trigger inflammation throughout the body.
Unlike typical air pollution, wildfire smoke also contains toxic substances released from burning homes, plastics, furniture, vehicles, electronics, and industrial materials, making prolonged exposure particularly harmful.
Also read: Delhi's Poor AQI, Monsoon Conditions Put Children's Lungs at Risk: Ways to Keep Kids Safe
Prolonged exposure to wildfire smoke can have long-term effects on the respiratory system. Possible health effects may include:
Children, older adults, and people with existing lung conditions face the highest risk because their lung function is already compromised.
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The tiny particles in wildfire smoke don't just stay confined to the lungs. Once they enter the bloodstream, they can affect the cardiovascular system. In the long run, research says wildfire smoke exposure can lead to:
With frequent incidences of wildfires, scientists are looking into how wildfire smoke affects the brain. Emerging evidence suggests smoke exposure may contribute to:
Wildfires can affect mental health in more than one way. Besides the stress of evacuation and property loss, smoke exposure itself may contribute to mental health problems directly. One is at the risk of the following mental health issues after exposure:
Communities repeatedly exposed to wildfire events may experience prolonged psychological distress that could often go undetected.
Growing evidence suggests that long-term exposure to wildfire smoke may increase the risk of several cancers. Studies have reported possible associations with lung cancer, breast cancer, colorectal cancer, bladder cancer, and certain blood cancers
Although researchers say more studies are needed to establish a direct cause-and-effect relationship, the findings highlight the importance of limiting repeated smoke exposure.
Also read: How Air Pollution Puts Heart Patients At Risk - What You Can Do About It
Pregnant women are among the groups considered most vulnerable to wildfire smoke. Research suggests exposure during pregnancy may increase the risk of preterm birth, low birth weight and other pregnancy complications.
Healthcare providers recommend minimizing outdoor exposure whenever air quality deteriorates.
Even after visible smoke disappears, harmful particles may remain in the air. Experts recommend:
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