the answer might be 25
Because swimming is good for your health.
Primarily in swimming, you hold your breath underwater as you move your entire body to swim. Your endurance in holding your breath increases due to holding your breath for extended periods of time and the pressure that you receive from the water. Your muscle and strength endurance increase due to the continuous moving and swimming of your body. Cardio endurance increase due to all of the work your body is undergoing, heart rate begins to slow down as you swim for a lot of times. breathlessness and becoming easily tired are less likely to happen. Weak muscles strengthen making you immune to numb and painful muscles.