Morning and night--upon getting up and upon retiring--there is every reason to make it a rule to exercise freely.
The morning exercise wakes us up and sits us down finally at the breakfast table with a zest for the food set before us.

The morning bath is an agency for good in this direction after we have given ourselves a good shake-up from head to foot.

By the same token, exercises at night before retiring induces sound sleep and takes away the strain of the preceding day.
A very successful system is that of exercising in bed.

Instead of immediately jumping to the floor in the morning it is very inviting to go through some simple form of gymnastics in which the physical structure is brought into play.
Physical exercise is something which can be carried to extremes.

We can go at the work so intensely that we become muscle-bound and develop some structural enlargements that we do not need.