Sit on the floor with your Back against the wall.
Now bend forward to touch your toes. If you are over 40 and can’t get near them you could be more at risk of heart disease according to a 2009 study in Japan.
This found that middle aged and older people with poor flexibility also had stiff arteries which may be due to less movement of blood and oxygen in the body, including the heart.
If you are concerned about poor flexibility, your Instructors will be able to help.