Yoga and Tai Chi are for everyone. However, when online, it is up to the individual to assess whether they are ready for the class that they have chosen. Obviously, if you suffer from specific injuries or disease it is best to consult with your physician first. Similarly if you are pregnant, follow the recommended practice only. The practice of yoga postured & Tai Chi movements requires you – the practitioner – to gauge the safety of your practice within your personal physical limitations. It is better to build up slowly than to force and strain. Whilst one may feel some exertion one should also feel relaxed. The techniques and suggestions presented are not intended to substitute for proper medical advice.Consult your physician before beginning any new exercise program. Graeme Waterfield assumes no responsibility for injuries suffered while practicing these techniques.