I am 62 and I'm often taken for 45-50. Some have insisted I must be joking when I tell my age. I've never smoked, but did and do drink, mostly wine, which I'm sure is good for health, in moderation. I didn't avoid the sun until I did the Marshall Protocol, and I had lots of sunburn as a child and teenager. I do avoid it now.
I stopped eating refined flour and any sugar more than 30 years ago, don't eat red meat, eat lots of veggies and fruits and nuts and seeds, which have the best oils. I avoid prepared foods with artificial coloring and flavoring and other chemicals. I'm an organic gardener and grow some of what I eat. I start my day with a big mug of coffee and I drink tea, mostly green tea, regularly. I use a lot of herbs, garlic, onion and spices in my cooking. Many of the herbs come from my garden, so they're fresh.
My parents are still fairly healthy and independent in their late 80's. And yes, I look younger than my younger siblings. People have asked if I'm the younger sister of my 3 younger brothers. I haven't worn makeup since I became disabled, but I do henna my hair, which is white on top only.
My guy is 16 years younger than I and people usually assume he's older than I. Or, just that I'm younger than I am.
I still feel like I'm about 90 most of the time. I've had CFIDS for 28 years, almost half my life. I'm mentally and emotionally ready to die at any time, but the body just won't give up.