If you're 40+ are you too old to be a startup founder?

[@KennyFraserSunstoneComms]

I am a founder and I am 62. Learning to manage your energy is my big lesson now. Sleep, exercise, nutrition AND work - you need to think about the complete equation.

[@kedynguyen]

Started my company at exact my 40 year-old, one year ago, what an amazing journey

[@valsopi]

I am curious if it has to do with kids' ages, for those who have kids. The older the kids, the more tired maybe? Hmmm....

[@insats]

Or the other way around? :D I'm 39 and have a 3-year old son. I have so much less energy in the evenings since I became a parent. I'm not convinced it's because I've aged. During some points in life I worked something like 9am to 7pm, then eat quickly, then continue from maybe 8pm to midnight without any issues. I think the main difference now is that the time I spend with my family from maybe 4pm to 8pm interrupts my flow completely, so it's much harder to pick things up again in the evening. I also get sleepy from spending an hour putting my son to bed :D