Retirement: How To Retire At Age 60: Four Factors To Consider
https://www.youtube.com/watch?v=BeD-SFqOs4k
Good video. Having retired, and looking back, I think paying for health-care insurance would be the most difficult part of retiring before age 65. Right behind that would be the fact that you'd also stop saving for retirement at that age, and have to start spending your nest egg.