A bunion is a bony deformity of the joint at the base of the big toe. This animation shows how a bunion forms and explains what could cause it.

• Find out how bunions are treated

Carpal tunnel syndrome (CTS) is a condition that causes pain, numbness and a burning or tingling sensation in the hand and fingers. Watch this animation and find out what the carpal tunnel is and what causes CTS.

• Learn more about recovery after carpal tunnel surgery

Congenital heart disease refers to a series of birth defects that affect the heart. A paediatric cardiologist explains the different types of congenital heart disease and how each of them is treated.

• Also watch Hole in the heart - Lola’s story

Most people with chlamydia are unaware that they have it. This video describes how easy it is to get tested.

• Focus on chlamydia

A first aid instructor explains why it is important to have some first aid skills so that you can act in a life-threatening situation or simply attend to minor burns or scalds. Also, find out why members of the public decided to do a first aid course.

• Also read the first aid guide

Scott and Lucy talk about how their daughter Lola was diagnosed with ASD (atrial septal defect), a hole in the heart located between the left and right heart chambers. They describe how they coped with the diagnosis and treatment, how they explained to Lola that she needed an operation and where they found support.

• Find out more about congenital heart disease

Undescended testicle, also known as cryptorchidism, occurs when a boy is born without one or both testicles in his scrotum. A GP explains why it is important to treat undescended testicles, as the condition can cause fertility problems or can increase the risk of testicular cancer later in life.

• Find out more about the symptoms of undescended testicles

This video explains how the National Child Measurement Programme can help improve NHS services for children. As part of the programme children are weighed and measured at school. Find out what else is involved and why it's important for your child to take part.

• Read more about the National Child Measurement Programme

Jo has had social anxiety since her childhood. In this video, she describes how she went through childhood and adolescence accompanied by constant worries and fears and how this affected her ability to take part in social activities or form relationships. Find out what helped her to manage her anxiety as an adult.

• Learn more about the causes of anxiety

There are many ways of coping with stress. Professor Cary Cooper provides some techniques for managing stress, such as exercising and using relaxation techniques, and explains who you can talk to if you're feeling under pressure.

• Get more tips and advice about dealing with stress