In general systolic BP in young females is less than that in the males of same age due to: (A) Dietary habits, (B) Oestrogen which prevents atherosclerosis, (C) Progesterone effect on blood vessels, (D) Low sympathetic activity
Answer is B. In females before menopause SBP is 4-5 mmhg less than that in the males of same age .After menopause SBP is 4-5 mmhg more than males of same age. This effect may be due to oestrogen which prevents atherosclerosis. Ref: page number 349 Textbook of physiology Volume 1 AK Jain 7th edition