Most people are not exactly trying to end up in a cast, at least you would hope not. Still, broken bones are common enough that many people can point to at least one childhood fall, sports injury, or awkward accident that left them with a fracture.
Roughly half of people will break at least one bone during their life, according to the Royal Osteoporosis Society. Even so, there are always people who reach adulthood without ever snapping one, which has led to all kinds of theories about why.
That makes sense when you think about where it sits. The collarbone is thin, easy to hit during a fall, and placed high across the chest, which leaves it exposed during sports impacts, trips, and other accidents.
But TikTok creator Sara’s Weird World suggested there could be a very different explanation for people who have never broken a bone, saying there may be a ‘spiritual’ reason behind it.
The idea is that some people are guarded in a way that keeps serious physical harm away from them. It is the sort of claim that can quickly spread online because it gives an ordinary detail, like never having worn a cast, a much bigger meaning.
Of course, that does not make it medically proven. It does show why these theories get attention, though, especially on TikTok, where spiritual explanations and body-related claims often mix with personal stories.
The third theory goes even further and suggests that past lives could affect what happens to a person’s body now. In that version, someone who has avoided broken bones in this life may have already gone through pain or trauma before.
Sara explained it this way: “It is said that those people in this life who have never broken a bone may have experienced significant trauma in a past life. So, the theory suggests that they are being spared from having similar experiences in this life.”
Why people may buy into theories like this
It is easy to see why the idea catches people’s attention. If someone has never broken a bone, especially when their friends or family have, it can feel like more than luck.
Some people may also look for deeper meaning in small details about their bodies. The internet has made that even easier, because a simple question about health can quickly turn into a mix of myths, personal beliefs, and half-serious jokes.
Still, when it comes to bone strength and fracture risk, doctors tend to look at much more practical factors. Those include genetics, diet, exercise, age, falls, and the kind of activities a person does day to day.
Dr Hussain said the chances of breaking a bone are not simply random, but they are also not down to divine protection.
“[It’s] a mix of your genes, lifestyle, and even what you eat could be making your bones weaker or stronger,” he explained.
Dr Hussain said: “Bone strength is largely inherited. That includes how dense your bones are, how well your body processes calcium, and even how your skeleton is built.”
“Some of us are naturally more prone to thinner bones – and those can snap more easily under pressure.”
What bone strength actually depends on
Bone strength is not just about whether someone has had a lucky life. A person’s bones can be affected by how dense they are, how well the body uses calcium, and whether the skeleton is built in a way that handles pressure well.
That is also why two people can have very different outcomes from similar accidents. One person may walk away with bruises, while another may end up with a fracture after landing at the wrong angle or hitting the ground with more force.
Diet can matter too, because bones need the right nutrients to stay strong. That is why wider health advice often focuses on food, vitamin D, and lifestyle habits rather than luck or spiritual protection.
“Lifestyle plays a huge role in whether or not you’ll suffer a fracture one day,” said the healthcare expert.
Some of the main lifestyle factors include smoking, alcohol intake, and exercise levels. People who smoke, drink heavily, or do very little physical activity may face a higher risk, while regular movement can help support stronger bones and better balance.
The Royal Osteoporosis Society advises people to eat ‘a variety of foods’ that provide ‘essential nutrients’ as well as ‘vitamin D’. Nutrients can make a real difference to the body, and diet-related health issues have come up in other cases too, including warnings about vitamin B12 deficiency linked to diet.
So while the spiritual theories may be more fun to talk about, the medical explanation is clearer: never breaking a bone is usually tied to a mix of inherited bone strength, lifestyle choices, diet, activity, and plain old chance.
