Why testosterone increases heart size but aerobic training does not ?

Question

I understand that heart issues are caused by the “pumped” heart in people that take testosterone. But why the aerobic training is beneficial? Doesn’t it also increase musculature in the heart ? Especially something like HIIT

In: Biology

Answer 1

When you enlarge the heart unnaturally like that, it becomes too stiff making it harder to fill with blood. This is known as a type of heart failure called diastolic heart failure.