Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain loosing 20 to 30 strands of hairs per day is not abnormal and is normal for a person to loose even around hundred strands a day but higher than this is considered abnormal and counted under hairfall..
So in your case if does not look like hairfall..
In case of your brother if there is significant loss of hairs in front part of his scalp then it can be due to
Male Pattern Baldness and can occur due to androgenic hormones and genetics..
He should consult a hair expert or Trichologist and get evaluated and can be advised application of
Minoxidil lotion, oral intake of finesteride tablets,
biotin and
multivitamin supplements and coconut oil
massage of scalp..
Taking more of green leafy vegetables and fruits will also have additive benefits..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.