Breath is harmonised with a series of progressive postures to produce intense internal heat, and a purifying sweat that detoxifies organs and muscles.

Seventy-five poses are performed in 1.5-2 hours, starting with the "primary" postures (concentrating on alignment), and working up through a series of "grades" as strength and flexibility builds.

Health and fitness benefits

• Tones the body (think Madonna — she does Ashtanga yoga!)
• Improves circulation
• Realigns the spine
• Calms the mind
• Detoxifies
• Builds strength, stamina and flexibility

More info: www.ashtanga.com

Bikram yoga
A series of 26 postures in a 38°C room! "The sequence of postures is designed to stretch, strengthen and prepare specific muscles, ligaments and joints needed for the next posture," says Bikram yoga instructor and Yoga Tree Melbourne director, Mili Crncevic.

"The method then also stimulates the organs, glands, and nerves, moving fresh oxygenated blood to 100 percent of the body, restoring all systems to a healthy working order. This, combined with a hot room, helps you flush toxins from your body."

Health and fitness benefits

• Promotes weight loss
• Reduces stress
• Increases vitality, energy, relaxation, concentration and mental clarity
• Keeps joints supple
• Increases blood circulation
• Improves immunity (eg, arthritis and thyroid disorders)
• Helps heal injuries
• General sense of wellbeing

More info: www.bikramyoga.com

Iyengar yoga
Focuses on correct posture and body awareness. The creator, BKS Iyengar, wanted to make yoga suitable for everyone, regardless of age, health, disability, etc. so he included props, including pillows, mats, bolsters and sticks so everyone could do the poses without strain or injury. Postures are held for varying amounts of time.

Health and fitness benefits

• Mental and emotional wellbeing
• Helps alleviate postural/structural problems
• Stress release

More info: www.iyengaryoga.asn.au