Hypertrophy. The process of building muscle is hypertrophy.
When active in extreme weather you should always mind two things, your outfit and hydration. Keeping yourself hydrated and protected is essential, as wearing a cap and sunglasses can protect you in the sun just like scarves and gloves can protect you in the cold. Hydration is of extreme importance because you can collapse without enough water during a hot weather wave.
Dairy, Meat Products and seafood.. That is all I know and hopefully It helped
False, exercise does have positive effects on the nervous system