On awakening in the morning and several times during the day, if circumstances permit, expose your nude body to the invigorating influence of the open air and the sunlight.

During the hot season of the year and in tropical countries the best time for taking air and sun baths is the early morning and the late afternoon.

Persons suffering from insomnia or nervousness in any form are in nearly every case greatly benefited by a short air bath taken just before retiring, either preceding or following the evening sitz bath, as may be most convenient.