What are the best exercises to increase flexibility?

There is no one “best” stretch. It’s best to enjoy a well-rounded program of stretches for all of the major muscle groups of the body. People need to remember that stretching is a NEURO-muscular activity, so stretching frequently (every day or multiple days per week, 15-30 seconds, 2-3 sets) can have more impact than stretching less often and holding stretches for a longer period of time (1 minute or more). When you stretch, it’s a great chance to also practice deep breathing and cultivating your mind-body connection.