Tech entrepreneur Bryan Johnson's attempts to reduce his biological age

Experts in the field of longevity are exploring the concept of "healthspans" – the number of healthy years of our lives – in order to prevent the decline in health that often accompanies aging. 

To this end, a new industry is emerging that promises to revolutionize longevity through supplements, hot and cold therapies, and other techniques that are believed to lead to healthier, longer lives. 

Bryan Johnson, a tech entrepreneur, spends millions of dollars each year trying to reduce his biological age in a bid to reduce his risk of disease. However, every conversation about longevity inevitably comes back to lifestyle, with a healthy diet, exercise, fasting, and sleep all seen as important factors in living longer. 

Experts believe that most people could live to the age of 95 in good health with a healthy lifestyle. 

The use of technology to track our bodies as they age is also becoming increasingly popular, with wearables and other devices providing data that can be used to flag health risks and determine the most effective treatment. 

However, while progress is being made, it is likely to be gradual, with experts suggesting that any new drugs developed will only make a difference of a few years at a time.

Read more: https://www.bbc.com/news/business-65238774