One key to the use of exercise in aiding good sleep is that

a.
muscles contain sleep-inducing hormones
b.
it is easier to sleep when one is tired
c.
delta brain waves are generated by exercise
d.
only cardiovascular activities aid sleep

B.
hope this helps! xx

Your dog can sniff at or even eat a bit of catnip. the herb is edible and not harmful. just don't expect them to roll around like a cat would! your dog may scrutinize catnip by licking and smelling at it, or be totally indifferent to this stimulant.