I'm early 50s. In my mid 40s, I had terrible cholesterol and was obese. I have a family history of heart disease, and I got scared. So I started exercising (running, then switched to alternating rowing and lifting) and lost 70lbs and reached my ideal body weight, but I didn't change my diet. My cholesterol improved, but was still not good. My doctor was talking about putting me on a statin.
Two years ago, I started dating a vegan and slowly became vegan myself and I now eat a plant based diet.
Between the exercise and the diet, my cholesterol numbers have totally turned around. My doctor commented last month at my physical that she's never seen anybody turn their cholesterol around like that without drugs.