It's not just sweating though?
Its endless days where it's still light at 10pm, it's having next to no sleep even having a fan pointed at you all night, it's the complete lack of routine because you have to wake up at 5am because from 7am onwards it's too hot to walk the dog, it's the complete lack of breeze or any air, it's being unable to cool down no matter what you try, it's not being "sweaty" it's being wet and sticky within 5 seconds of walking out the door, showering multiple times a day just to feel somewhat clean, feeling completely drained and devoid of any energy after being awake for two hours or having to sit with the car door open for ages before you go anywhere because its like sitting in an oven. I can't think of a single positive of Summer.
This summer has been horrific especially if you have SAD, I've been horrifically depressed for weeks and it's finally starting to fade.
I typically walk 5 miles a day, I never break a sweat, I don't feel like people who exercise regularly would be sweating whilst out on a walk.
and before you ask, I was clinically obese last year. Summer was horrific. I've now lost half of my body weight and am in the middle of a healthy weight. This year was even worse. Yes some people struggle more with the cold than others but when you're cold there is at least things you can do to mitigate it, layer up, hot drinks, hearty food, you can take hand warmers on walks with you, have a hot bath and worst case stick the heating on.
When you're too hot you...sit in front of a fan that's blowing warm air at you? Ice in water melts almost instantly and doesn't do anything, cotton/linen clothing doesn't help. You can't exactly peel off your skin can you ?