This depends on the type of yoga class you attend. In general, it is advisable to wear comfortable clothes in which you can move freely and to bring a yoga mat, a water bottle and a towel. In some courses, other aids such as blocks or harnesses may also be required.

You don't have to be flexible to practise yoga. Yoga is a practice that can be modified to suit all levels and abilities, and can actually help improve flexibility over time. The most important thing is to listen to your body and work within your limits.

It is recommended to eat a light meal or snack at least 1-2 hours before the yoga class. Avoid eating a heavy meal immediately before class, as it may make you feel uncomfortable and hinder your ability to move and breathe comfortably.

It is important to inform the yoga teacher of any injuries or medical conditions prior to the lesson so that they can make adjustments and ensure safety. Always listen to your body and work within your limits, and consult your doctor if you have any doubts.

The frequency of yoga practice depends on personal goals and lifestyle. It is generally recommended to practise yoga at least 2-3 times a week.