I work full time as a teacher and at 60yrs old, I have another 7 yrs before it can retire from full time teaching and recieve a pension ( state and teacher's pension) that I can begin to live off. For several reasons I have to continue working full time . My question is one based around timing. I used to be reasonably fit and regularly swam and went to spin classes. However now my body is feeling very tired after a day in the classroom and I just eat supper and crash out at the end of the day. I tried swimming etc at weekends but again was too tired to put one foot in front of the other. Plus house and garden need cleaning/tending. Do I need to change my eating habits and not eat in evening so I have more energy to exercise as I find eating my main meal then does make me even more sluggish? I don't really drink and have a healthy bmi. What works for other older full timers with regards exercise? Advice please.