This for me becomes really obvious when you’re learning a new (movement) skill. For example after driving lessons or my first time skiing I spent the nights going through all the scenario’s. They also show that mice learning their way through a maze activate the same “direction” neurons in sequence of going through the maze while they dream and they think it will help in learning.

There were some older people at my university and they always sadly had a lot of trouble making friends and fitting in. Be glad your son is a good guy who doesnt judge people by their age.

I grew up with a doctor that believed in alternative medicine and a mom afraid of using medicine except when absolutely necessary. I was also perpetually dealing with colds and headaches. Now I take cold medicine when a cold starts and a painkiller to sleep well during the cold and they last about a quarter if the time.

If you have a power meter you can try out zwift or rouvy. You can see yourself riding specific routes on screen and they have workout programs that prompt change of intensity. Otherwise I think GCN has some follow along youtube videos, and there might be others as well.

Sounds bad for the environment

Human variation means you can be a male with a natural “male” wide pelvic bone. When determining the sex of human skeletons, they use a whole array of measurements besides just the width of the pelvis and still get it wrong sometimes. Unless you have other indications or feel you might be a different gender than you present as, you have nothing to worry about.

I heard once that shakira was kicked out of a choir for sounding “goatlike”.