Is taking baby aspirin twice a week useful for 42 yr old male with slightly high cholesterol or it's not enough?

Might: All research says that if you have a risk factor such as high cholestrol then tasking daily Aspirin will reduce the chance of heart attacks. But taking only few times a week while logically might but needs research to be sure.

Discuss with doctor: Aspirin offers benefits and dangerous side effects. For a thorough discussion of the topic see http://mdprevent.Blogspot.Com/2013/02/dr-oz-and-asprin-is-he-being.Html. Aspirin isn't for everyone and high cholesterol alone may not be an indication to take it. Other factors such as family history of heart attacks and strokes, high blood pressure, obesity, etc. Must weigh in so speak with your doctor.