Are there any factors besides genetics that makes an individual intelligent? If yes what and which contribute the most?

Whenever I get tired or stressed, I find it hard to articulate well. What is the cause of that?

I have a problem with my head, it's since my Childhood, it's very powerful Shocks of Headache in every time without any specific reason, it's make feel in tiredness and sleep; please help

I am using Abilify since a week and I'm feeling extremely tired at all times with knees and back pain. Should I stop the medicine or is it a necessary or passive stage?

Regarding spoiled meat & poultry in the leb market (chemicals, bacteria..), we continue to eat them knowing that we have no choice. Does this affect our body on the long term? what kind of threats?

Is cannabis addictive?