More People Are Getting Cancer But Fewer Are Dying From It — Here's Why

The Numbers Behind a Growing Concern

It's a question almost everyone has asked at some point: why does it seem like so many people around you are getting cancer? The feeling isn't just anxiety or coincidence. In 1975, about 400 per 100,000 people in the United States were diagnosed with cancer. By 2023, that figure had risen to 456 per 100,000 — though overall rates have been mostly stable since 2014. So yes, the numbers are real. But the story behind them is more nuanced — and more hopeful — than most people realize.

More people are being diagnosed with cancer today compared to 50 years ago — either because of an increase in actual cases, better detection, or a changing definition of what's considered cancer. That last point is easy to overlook. As medical technology has improved, doctors are catching abnormalities that would have gone undetected in previous decades, inflating diagnosis counts even when the underlying disease hasn't necessarily spread further.

What Cancer Actually Is — and Why It Happens

Cancer involves the uncontrolled growth of cells in the body, and while there are a number of possible causes, they all relate to errors in a cell's genetic instructions, or DNA. A cell can make a random mistake when replicating, resulting in a cell that grows faster than those around it, or it can be damaged by carcinogens such as ultraviolet light or the chemicals in cigarettes. In other words, cancer is not always the result of lifestyle choices — sometimes it is simply, as researchers put it, bad luck.

Our bodies recognize when cells are damaged, grow too rapidly, or otherwise behave abnormally, and react by sending out chemical signals that tell the cells to stop growing or self-destruct. Errors can alter that signal or affect a cell's ability to recognize it — the cell effectively turns a deaf ear to the body's instructions to cease and desist. Understanding this biological mechanism has been central to developing the treatments that are now saving more lives than ever before.

A Revolution in Treatment Is Changing Survival Odds

Since 1999, age-adjusted cancer death rates have fallen dramatically — from 201 per 100,000 people in 1999 to 142 per 100,000 in 2023. That's a staggering decline, and it reflects decades of medical progress. Although cancer still ranks as the second most common cause of death in the U.S., mortality rates have dropped by about a third since 1991.

Within the past 10 to 15 years, there has been a revolution in the use of immunotherapy to treat cancer, with drugs that specifically target proteins on the outside of cancer cells or that harness a patient's own immune system to find and eliminate cancer. These newer, innovative treatments have improved the rates and duration of remission and even survival for a number of cancers, and have retooled how we treat the disease.

A Worrying Trend in Younger Adults

One shadow hangs over the otherwise encouraging data: cancer is rising among younger people. Rates of several cancers are rising in young adults, including those outside of the gastrointestinal tract, such as breast cancer and myeloma. Researchers suspect environmental exposures may play a significant role, though no single cause has been confirmed. There's little certainty about what's driving the early-onset cancer trend, but multiple studies have pointed to some of the same potential culprits — with more than a few singling out obesity and heavy alcohol consumption as likely key contributors.

While it is true that there seems to be more cancer than ever, there is also more hope than ever, as cancer is being detected earlier, eliminated more effectively, or transformed into a chronic condition rather than a life-threatening one. The challenge ahead is not simply treating more cancer, but understanding why it's striking younger generations — and whether the environmental and lifestyle factors driving that trend can be reversed before the next generation faces even greater risk.