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

[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.

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.

Some things tend not to work so well for science - things that rely on substantial written contributions by key experts are a case in point - but even there I tend to keep an open mind, because it may just be a case of finding the right formula.

Accept the difficulty of what you cannot yet change. But do not accept the impossibility of ever changing it.

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.

Ageing is, simply and clearly, the accumulation of damage in the body. That's all that ageing is.