Losing most of your body heat through your head isn't true. You're correct that if your head is the only part of your body that isn't "insulated" ie under a blanket, then yes you will lose more there. But in general, you lose a lot of heat through your hands and feet because your fingers and toes act to greatly increase surface area for heat transfer to your surroundings
Pretty sure scalloped doesn't necessarily mean to bake in cream sauce. It refers to the way they are cut - concentric circles or semi circles to look like scallops (the fish). So although they may look like scallops, there's no fish in the dish at all.
It sounds like if you're trying all of this and it's still not working, something about the way you're selling yourself isn't working.
Have you tried changing your resume to better match different job descriptions? Try having someone give you feedback on the way you interview. Are you coming on too strong? Maybe you dont have enough specific examples in your answers or too many specifics and not enough leadership/direction. I would also use LinkedIn if you're not already
Testosterone does increase risk of heart failure so that is certainly part of it.
Women are also more risk-averse. Risky living = high chance of dying https://m.economictimes.com/magazines/panache/men-have-a-shorter-life-expectancy-than-women-thanks-to-their-genes-says-harvard-study/articleshow/99119402.cms