The mild outward curve of your upper spine, called kyphosis, is normal. However, for some people, that spinal curvature increases noticeably with age, creating a stooped-over, head-forward posture.

Hunchback by Saou Ichikawa is out on 6 March (Penguin, £10.99). You can buy it from the Big Issue shop on bookshop.org, which helps to support Big Issue and independent bookshops. Do you have a story ...

Saou Ichikawa’s award-winning novel, “Hunchback,” is narrated by an heiress with a rare genetic disorder and a brilliant, cynical mind. By Elizabeth McKenzie Elizabeth McKenzie is the author ...