What causes the forehead to increase in size other than age and gene factors?!
Question: What causes the forehead to increase in size other than age and gene factors?
Can any chemicals possibly cause your forehead to increase in size?
Answers:
NO. No chemical on earth can do that. Do you have a receding hairline? Nothing increases forehead size that I know of and I'm a physician, so I'd know. Maybe it's all in your head (pardon the pun).
As to genetics, possibly so. Take a look at all your relatives.