10 Terrific Tonics To help maintain your body's balancing act, try these herbs, each of which works to revitalize the system. Remember, this information is not meant as medical advice.

Ginseng (Panax ginseng)
Helps improve immunity, mental function, stamina, energy levels and resistance to stress by regulating and strengthening body functions.

Astragalus (Astragalus membranaceus)
Strengthens the immune system and protects against viruses in general. Touted for invigorating vital energy (qi — pronounced "chee")in traditional Chinese medicine.

Milk thistle (Silybum marianum)
Enhances metabolism of liver cells and protects them from toxicity.

Olive leaf extract (Olea europea)
Helps maintain healthy cholesterol, blood pressure and glucose levels. Also protects against viral infections.

Garlic (Allium sativum)
Regulates blood pressure and cholesterol. Also boosts immunity.

Dong quai (Angelica sinensis)
Traditionally known as a "female tonic," useful for difficult or irregular menstruation. Also improves circulation.

Ginger (Zingiber officinale)
Tones the digestive system and relieves upset stomach by increasing digestive fluids and neutralizing toxins and acids.

Reishi (Ganoderma lucidum)
Lowers cholesterol, blood pressure and general anxiety. Once considered an "elixir of life" by Chinese emperors.

Licorice root (Glycyrrhiza glabra)
Famous as an anti-ulcer herb. Valued by traditional Chinese herbalists for its detoxifying properties.

Green tea (Camellia sinensis)
Anticancer and antibacterial benefits. Also balances cholesterol levels and protects against tooth decay and gum disease.