I don't know about you but I've been feeling like shit for the last couple of days. At first I figured it was just because it was Monday, but then again every Monday sucks. This Monday however was particularly bad. I felt like I was in a fog all day, like I was wearing a football helmet on my head or something.
I just couldn't focus and felt exhausted, that's when I realized that it was probably the heat and high humidity that's been messing me up, so I did a bit of research and the good news is, I'm not crazy.
According to the Journal of Applied Psychology and the Indian Journal of Occupational and Environmental Medicine, when the weather is humid, you feel much 'hotter' than usual. That means you're body has to work overtime to maintain a comfortable temperature. Normally, you sweat to release body heat, which also helps cool you off as the moisture evaporates from the skin. But when the air is too moist, the sweat can't evaporate as fast causing the body to overheat. Your blood vessels dilate to help release some extra heat but that just sends more blood to the surface of your skin, which means less blood for your brain and internal organs. When the heat becomes overwhelming, the body can't release heat efficiently, this can lead to heatstroke, dizziness, vomiting, headaches, cramps and a sudden drop in blood pressure.
To reduce the possibility of feeling these symptoms, remember not to exercise too much, drink plenty of water, stay out of the sun as much as possible, and spend as much time as you can in a cool (preferably air conditioned) area.