Aging in bursts

It turns out we don't just fade away...

 New Scientist has the story:

Rapid bursts of ageing are causing a total rethink of how we grow old
Suddenly feeling old? Evidence now suggests that rather than a long, steady decline, we dramatically age around three specific times in our lives. Might it be possible to stay younger for longer? By Graham Lawton

"participants clustered into four groups: the under-34s, those aged 34 to 60, people aged 61 to 78 and the over-78s. Within each group, the protein profiles were very similar, but at the ages of 34, 60 and 78, they suddenly changed, with levels of some proteins rising dramatically while others plummeted. What’s more, some of the proteins that became enriched in the older age groups were already known to be associated with cardiovascular disease and Alzheimer’s"