Main content
How 'masculine' is your brain?
This surfer鈥檚 love of waves could be down to the levels of testosterone he experienced while in the womb.
Duration:
This clip is from
More clips from Learning
-
![]()
Does cracking your knuckles lead to arthritis in later life?
Duration: 01:20
-
![]()
Cracking_knuckles_myths(3).mp4
Duration: 01:20
-
![]()
Cracking_knuckles_myths(2).mp4
Duration: 01:20
-
![]()
Does cracking your knuckles lead to arthritis?
Duration: 01:20
