(Concern) My husband has severe hair loss.

My groom is experiencing severe hair loss. We've tried hair loss medication, got a perm, and even used anti-hair loss shampoo, but nothing seems to work. He's still in his 30s. Is there any good method to prevent hair loss?

I hear you've been to all the hospitals that are said to be good for hair loss here and there. Stress must be the main cause, right?

My husband's hair loss is severe, so I think I'm also feeling stressed.

Is there a good way?