Body clock

Exercise at 9am - morning exercise boosts your mood.
Tackle tough tasks at 10am, when concentration peaks.
Eat lunch at 1pm, when liver enzymes cause hunger pangs.
Go to the dentist at 2pm, when your pain threshold peaks.
Drink wine at 7pm, when the liver can metabolise alcohol faster.
Have sex at 10pm - this is when your libido peaks.
Finally, go to bed at 11pm, when you experience a surge of melatonin.

Phew. 7 o'clock; better have my wine and start getting ready for you-know-what at 10.