iirc there also might be problems of (slightly) increased cancer risk. there are some doctors who prescribe test to keep patients test level up later in life,

iirc there also might be problems of (slightly) increased cancer risk. there are some doctors who prescribe test to keep patients test level up later in life, but the increased quality of life might mean a decreased life span and not everyone is willing to take the trade-off. patients willing to try usually just try a few doctors until they find one who does.