Since someone would be performing wind sprint activities, it is guaranteed when performing any activity is to get better overtime so I would say to "work above your target heart rate"
I believe the answer is asthma considering it is not as dangerous as the other consequences
Answer:
Most likely a fungal infection, Onychomycosis (fungal infection of the nail)
Explanation:
The symptoms of Onychomycosis are discoloration, brittleness or thickening.
It is b, increased fertility.
