They are all things that have been shown to extend lifespan in various studies in the past few years. Some of these studies were observational like this, some where done by giving mice ridiculous doses etc but they all got picked up by the media.

Some of these results are probably valid but if you want to scientifically extend your life you need to do so with statistical rigor.

Show me a rigorous study demonstrating that one can only lengthen their lifespan by making decisions based on evidence at the level you demand.

I don't believe you make every, or even remotely close to most of your decisions in daily life by this standard. Human brains aren't designed to and don't have the energy to do so.

No I don't...I take my doctors advise but I also exercise and eat well because I enjoy it.

However, in my job, I analyze large medical datasets. You will understand if I get a bit pedantic about such things.

Doing some strength training is a probable plus on several fronts with few risks. However if I am advising doctors or the presidential physical fitness council to recommend strength training vs endurance training vs focusing on diet on an institutional level I need to look at the evidence for each with more rigor.

Stop smoking, buckle your seatbelt, lose a few pounds and take tons of Vitamin D. Everything else is conjecture.

Except don't take tons of Vitamin D http://www.sciencedaily.com/releases/2012/05/120529102346.ht...