Collins Gem 100 Ways to Boost Your Immune System: Instant Self-Defence from Illness »

Theresa Cheung is a health and fitness expert for You and Your Wedding magazine and the author of several health books, including Better than Sex, The Glycaemic Factor, and The Lemon Juice Diet.

For those suffering from tiredness, frequent illness, allergies, and mood swings, this insightful resource provides instructions for fortifying your body’s immune system and increasing your daily happiness and vitality. Helpful information is provided on how the immune system works, what germs cause infection, and how illness can be fought naturally or with antibiotics. Several areas which affect health—including lifestyle, diet and nutrition, and the mind and emotions—are addressed, and tips are provided on simple changes which can be made in these areas to increase an immune system’s vitality, including using stress management techniques and incorporating healthier foods into the diet.