If you have 2 minutes:

Extremely dark chocolate has been proven by researchers at Yale University to reduce blood pressure thanks to the antioxydants, known as flavonoids, found in cocoa. Enjoying a few squares of chocolate made with at least 75% cocoa is one of the the tastiest shortcuts to inner calm.

If you have 5 minutes:

Breathe deeply. Breathe yourself calm by lying on the floor, taking several deep breaths, then one slow breath in, as you tense the muscles in your feet. Aim to hold your breath and the tension for 20 seconds, before slowly releasing. Repeat with your calf muscles, working your way up and finishing with your facial muscles. (Patrick Holford, author of Natural Highs)

If you have 10 minutes:

Meditate and increase levels of the feelgood chemical serotonin. Sit upright with both feet firmly on the ground. Take a deep breath, close your eyes and focus on the space behind your eyelids, allowing your mind to disconnect from stressful thoughts. (Sonia Wynn-Jones, http://www.peaceofmind-online.com)

Adapted from article in Prima magazine (www.allaboutyou.com/prima)