How can i sometimes hold my breath ages (underwater) and no other times?

Question

I was practicing for scuba diving course and you have to hold breath and most of the times i can hold for ages but recently i cant hold for that long. Someone please help it may effect my course.

Answer 1

THATS BECAUSE IT DEPENDS HOW MUCH AIR YOU HAVE INSIDE YOU ALREADY , THE TIMES U CAN HOLD UR BREATH FOR LONG IS BECAUSE U HAVE ALOT OF OXYGEN IN UR SYSTEM 2 SURVIVE THE UNDERWATER .

HOWEVER THE TIMES U CANNOT HOLD UR BREATH IS DUE TO LOW OXGYEN. \

HOPE THAT HELPED!

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