I think it is chromosomal abnormalities
Benefits
Increased muscle mass: Muscle mass naturally decreases with age, but strength training can help reverse the trend.
Stronger bones: Strength training increases bone density and reduces the risk of fractures.
Joint flexibility: Strength training helps joints stay flexible and can reduce the symptoms of arthritis.
B) Vaginal
Vaginal is always the best option, all these others have a higher risk of damage to the internal glands.
True sinc it helped with furthuring our lifespan and also helping with our offspring