It has been nearly 1 year since I gave birth to my second child, and I am still losing hair and my hair is becoming thinner. What can I do to make my hair thick again? Or is it an aging process?

If you haven't already tried anti hair loss products, you should. I'd suggest organic hair products with no or little chemicals. Anything with coconut oil or olive oil is good because it can help strengthen hair. Changing your diet might help too. I heard cutting down on caffeine might help with hair loss. You can also eat vitamins supplemented with keratin and calcium. Most multivitamins for women contain these vitamins.