Brain cancer is one of the deadliest diseases — and early detection is crucial for better outcomes.

There are obvious symptoms like sudden, severe headaches and dizziness, while subtle signs such as sweet smells and vision changes can slip under the radar.

Now, an international team of researchers is raising alarm bells about another early warning sign that affects millions of people.

A new study has found a common occurrence that affects millions of adults could be an indicator of brain cancer. DC Studio – stock.adobe.com

About 1 in 10 US adults experience a seizure at some point. A study published Monday in JAMA Neurology found that this abnormal electrical activity in the brain could be one of the first indicators of brain cancer.

Of course, seizures don’t always mean a cancer diagnosis, according to Dr.…