baby sweat = loosing hair

}i{ • Married ~ FTM
My baby was born with lots and lots of hair he is now 7 months and his hair is falling... I know it's suppose to happen but I heard sweating can cause hair loss as well... he is a sweating machine when he sleeps and eats now he has very thin hair on the sides and lots on top. Anyone else going through this? Did anything help to stop or help hair growth?