I'm the chief science officer of a foundation that works on the application of regenerative medicine to the problem of aging.

The scientific method actually correctly uses the most direct evidence as the most reliable, because that's the way you are least likely to get led astray into dead ends and to misunderstand your data.

In the eye, there is a type of junk that accumulates in the back of the retina that eventually causes us to go blind. It's called age-related macular degeneration.

[Anti-aging therapies will] never be perfect, but we'll be able to fix the things that 200-year-olds die of before we have any 200-year-olds, and the same for 300 and 400 and so on.

I dont often meet people who want to suffer cardiovascular disease or whatever, and we get those things as a result of the lifelong accumulation of various types of molecular and cellular damage.

Theres no such thing as ageing gracefully. I dont meet people who want to get Alzheimers disease, or who want to get cancer or arthritis or any of the other things that afflict the elderly. Ageing is bad for you, and we better just actually accept that.

It's not just about life, of course; it's about healthy life. Getting frail and miserable and dependent is no fun, whether or not dying may be fun.