Is it real or hype? We follow the most-talked-about claims in longevity science and tell you where the evidence actually stands.
Scientists are testing drugs that clear out old, damaged cells from the body. Early human trials are showing real benefits — reduced inflammation, improved physical function. The cells they target are sometimes called 'zombie cells' because they stop working but refuse to die.
Rapamycin — originally used to prevent organ rejection — blocks a molecular switch in your cells that controls growth and repair. In animals it reliably extends lifespan. Human trials are underway to see if low doses can improve immune function and reduce age-related decline.
Biological age tests use chemical patterns in your DNA to estimate how fast your body is actually aging — separate from your chronological age. These tests are now used in major research studies and are starting to appear in clinical settings. They can reveal whether your lifestyle is accelerating or slowing your aging.
Researchers are developing comprehensive blood tests that measure hundreds of proteins and metabolites to build a picture of how your body is aging. These panels can predict disease risk and biological age more accurately than single markers — and may eventually become a standard part of preventive health care.
Fasting and calorie reduction have strong evidence for extending healthy lifespan in animals. Researchers are testing compounds — including metformin, spermidine, and NAD+ boosters — that may reproduce some of these benefits without requiring extreme dietary restriction. Human trials are ongoing.
The trillions of bacteria living in your gut don't just affect digestion — they influence inflammation, immune function, and how your body ages. Studies consistently show that people who age well tend to have more diverse gut microbiomes. Diet, particularly fibre and fermented foods, is one of the most reliable ways to influence this.
AI tools are scanning millions of molecular combinations to find drugs that could treat age-related diseases — a process that used to take decades. Several AI-discovered drug candidates are already in human trials. This doesn't mean longevity drugs are imminent, but the pace of discovery is genuinely accelerating.
Scientists are developing gene therapies that could repair or reset aging processes at the cellular level — targeting telomeres, switching on repair genes, or reprogramming cells to a younger state. Most of this work is still in early animal studies, but a handful of approaches are moving into human trials.
Currently, no drug can be approved to 'treat aging' — regulators only approve treatments for specific diseases. That could change. The FDA has approved a trial called TAME testing metformin for aging itself, which is a first step toward recognising aging as a medical target. This matters because it would unlock a faster pathway for longevity drugs to reach patients.
Billions of dollars in private and public funding are flowing into longevity research — from Silicon Valley investors to government grants. This matters for consumers because more funding means more clinical trials, faster progress, and eventually more treatments reaching the market. The field has grown from a niche scientific interest to a mainstream investment category.
Creatine is best known as a gym supplement, but researchers are finding it may have broader benefits for healthy aging — including preserving muscle mass, supporting brain function, and improving bone density as we get older. Multiple human trials support some of these effects, though research is still building on the longevity-specific questions.
Research consistently links sexual health, activity, and hormone levels to broader health outcomes as we age — including heart health, cognitive function, stress resilience, bone density, and even longevity. Hormonal shifts during menopause and andropause are now understood as significant aging events, not just quality-of-life issues.
