Specific deficiencies should be treated when necessary, and mild herbal stimulants can be applied.

Narcolepsy is a neurological disorder characterized by uncontrollable episodes of sleepiness during the day. Episodes...

Guarana contains caffeine and other xanthine alkaloids and can have up to three times as much caffeine as coffee. It...

Kola nut is a central nervous system stimulant used for short-term mild depression, seasickness, appetite stimulation...

Sleep disorders are a group of syndromes characterized by disturbances in the amount, quality, or timing of sleep, or...

Rosemary is a common garden herb containing natural camphor, which helps invigorate the circulatory and nervous syste...