Heat and cold now effect me greatly. Environmental and core body temperature due to excersize or just working in the garden. My residual optic neuritis acts up blurring my vision and effecting my balance. 30 years ago on way to class on bicycle I started losing my vision. Came right back in 15_minutes of AC in classroom, huh. When later in the week when I went blind on way to school I went to eye Dr, he said I suspect ms and go see neurologist. The hell with that and it took 6 months before I went. My second opinion in Denver was a hot summer day. One hour drive in my old Ford truck with no AC. Was pretty much blind by time I got there and diagnosis confimed in 10 min so Dr could catch a plane for vacation. Now the terror drive home, luckily it had started to cool down for the evening. Still took me over a year to figure out the importance of AC in my life. The vision is much better now but heat still makes everything worse, really all past symptoms come back with overheating. Still made it to 25_years in a row of Bluegrass Festivals in late August, Colorado's hotest time of year. Cool vests, cold beer, and hours spent sitting in river ru ni g through shows made it possible. Seems excersize in swi.ming pool works best but don't have the time. Cold used to be my friend but alas now it's not . Give me 70_degrees every day and it's perfect. Garden in mornings and evenings, stay out of hot environments and learn to love AC. Good luck , cool vest.com , I think.

I've experienced both extremely hot and cold conditions, and found that the cold is better for me than the heat. When I say cold I am talking Alaska weather...-40 degrees. When I say hot I am talking about Georgia weather 100 to 105 degrees. It really just depends on your body. Just listen to your body :0)

Yes the heat makes it difficult on me and so does the cold

Drains me, but I prefer the summer over the winter anytime

I can't do heat at all makes me very sick and tired (more then regularly)