Heatwave: Why Does Sun Make You Extremely Tired?

Scorching heat and sun can make you dehydrated and eventually tired. Read on to know how sun can make you tired.
  • SHARE
  • FOLLOW
Heatwave: Why Does Sun Make You Extremely Tired?


Even though it is mid-June, the temperatures in North India are not ready to ease off. The scorching heat and the brightly shining sun up there is making people sick and tired. The hot windy loo that flows all day long, even at night, is making it difficult for people to step out. Walk out of your air-conditioned room and you will feel like you have just entered a big oven ready to be heated. The unpleasant sweating and those uncomfortable rashes can annoy the hell out of you. But the most annoying part of this is the fatigue and tiredness that you experience in summer. 

While sunlight offers numerous benefits, such as boosting mood and providing essential vitamin D, it can also leave you feeling surprisingly tired. If you’ve ever wondered why a day spent in the sun can leave you drained, here are some reasons to consider.

1. Dehydration

One of the primary reasons the sun makes you feel tired is dehydration. When you're out in the sun, your body works overtime to regulate its temperature. This process involves sweating, which is your body's natural cooling mechanism. However, studies have shown that excessive sweating can lead to significant fluid loss, and if you're not replenishing those fluids, dehydration sets in. Dehydration decreases blood volume, making it harder for your heart to pump blood efficiently, leading to feelings of fatigue and lethargy.

Also read: Frequent Headaches Amid Heatwave: Doctor Explains Possible Reasons

sun

2. The Body's Heat Response

Your body has to work harder to maintain its internal temperature when exposed to high temperatures, according to research. The hypothalamus, which acts as the body's thermostat, triggers processes like sweating and increasing blood flow to the skin to dissipate heat. This extra effort requires more energy, leading to tiredness. Additionally, high temperatures can cause your blood vessels to dilate, lowering your blood pressure and making you feel dizzy and weak.

3. UV Radiation and Immune Response

While moderate sun exposure can boost your mood by increasing serotonin levels and providing vitamin D, excessive exposure to ultraviolet (UV) radiation can have the opposite effect. According to a study published by the National Institute of Health, UV rays can cause inflammation and trigger an immune response as your body tries to repair the damage to skin cells. This immune response can drain your energy, making you feel tired and sluggish.

sun

4. Electrolyte Imbalance

Sweating not only causes fluid loss but also depletes essential electrolytes like sodium, potassium, and magnesium. These minerals are crucial for maintaining muscle function and energy levels. Studies show that an imbalance in electrolytes can lead to muscle cramps, weakness, and overall fatigue. Replenishing these electrolytes through sports drinks, fruits, and vegetables can help mitigate this tiredness.

5. Sunburn and Skin Damage

Sunburn is a clear sign of overexposure to the sun's rays, and it comes with its own set of problems. Sunburnt skin can cause pain and discomfort, which can be exhausting for the body. The process of healing and regenerating damaged skin cells also requires energy, leaving you feeling more tired than usual.

Also read: Heatwave Red Alert: Protect Your Eyes With THESE Effective Tips

6. Physical Activity and Overexertion

sun

Outdoor activities like swimming, hiking, and playing sports often go hand-in-hand with sun exposure. These activities, while enjoyable, can be physically demanding. The combination of physical exertion and the body's efforts to cool itself down can lead to increased fatigue. Additionally, the enthusiasm of engaging in these activities often leads to underestimating the need for breaks and hydration.

7. Disrupted Sleep Patterns

Bright sunlight can interfere with your sleep patterns. While sunlight helps regulate your circadian rhythm, overexposure, especially later in the day, can make it harder for you to fall asleep at night. Reports have suggested that disrupted sleep patterns lead to poor-quality sleep, which can contribute to feeling tired the next day.

sun

8. Mental Fatigue and Overstimulation

Spending a day in the sun can be mentally exhausting as well. Bright light and heat can be overstimulating, leading to mental fatigue. Activities that require concentration or navigating through crowded, noisy environments can add to this mental exhaustion, making you feel drained.

Preventing Sun-Induced Fatigue

To prevent feeling excessively tired after sun exposure, it's essential to stay hydrated by drinking plenty of water throughout the day. Take regular breaks in the shade to cool down and allow your body to rest. Wear lightweight, breathable clothing and a hat to protect yourself from direct sunlight. Using sunscreen can prevent sunburn, and incorporating electrolyte-rich foods or drinks can help maintain balance in your body.

Understanding why the sun makes you tired can help you take the necessary precautions to enjoy your time outdoors without feeling overly fatigued. Remember, the key is moderation and taking care of your body's needs while soaking up the sun's rays.

Read Next

Expert Answers: Do Blue Light Glasses Really Reduce Eye-Strain?

Disclaimer