Recognizing the Signs of a Low

A low happens when the sugar in your blood drops too far. It often starts in the body. Common early signs include shakiness, cold sweats and a racing heart.

Sudden hunger and headache are early signs too. Irritability, like snapping at people more than usual, can show up as well. Early signs can feel mild, so people often brush them off.

Some signs mean the brain is short on fuel. Confusion, slurred speech, blurred vision and trouble walking are signs like this. Slurred speech means words come out thick or mixed up. Think of a car running on an almost empty tank, which sputters and acts strange.

If the person is unconscious, having a seizure, or cannot swallow safely, call 911.

A brain sits beside a brain fuel dial. With steady fuel the needle sits in the middle and the brain glows. When sugar runs low the needle drops to empty, the brain dims and swirls show confusion. Steady checks and care keep the needle in the middle.

Some people stop noticing early signs after many lows. Over time, the body can give less warning. Family members often notice changes first.

Shakiness can also come from worry or caffeine. If a meter is nearby, check the blood sugar instead of guessing. Ask your care team how often to check.

Key takeaways

• Early signs include shakiness, cold sweats, a racing heart and sudden hunger.
• Confusion, slurred speech, blurred vision and trouble walking mean the brain is short on fuel.
• Some people miss early signs, so a meter check often gives a clearer answer than a guess.

Try it

Today, watch for one early sign in someone you care for, and note the time.