When I swim in the morning, I feel like a nap shortly after.
When I swim at night, I am wired and can't fall asleep for hours.
Just swimming, too -- other exercise is just the opposite.
If I swim in the evening and it's aerobic stuff, I sleep well, but I have to be very careful with sprints; too many or too hard and I can have trouble sleeping or get a migraine later. Weights late in the day can also be problematic. My muscles get all jumpy and I have trouble getting to sleep. The best approach when doing weights seems to be to lift in the am and then do a casual swim later in the day as I get better sleep and have less soreness later. The problem is that this approach can be difficult to fit into my schedule.
Rant mode on: Meet directors should provide an opportunity to warm down after evening swim meets, for the above reasons. Rant off.
If I swim in the evening and it's aerobic stuff, I sleep well, but I have to be very careful with sprints; too many or too hard and I can have trouble sleeping or get a migraine later. Weights late in the day can also be problematic. My muscles get all jumpy and I have trouble getting to sleep. The best approach when doing weights seems to be to lift in the am and then do a casual swim later in the day as I get better sleep and have less soreness later. The problem is that this approach can be difficult to fit into my schedule.
Rant mode on: Meet directors should provide an opportunity to warm down after evening swim meets, for the above reasons. Rant off.