Which of the following is a sign of high blood sugar levels?

Numbness of hands and feet is a sign that can be associated with high blood sugar levels, particularly in the context of diabetes. High blood sugar, or hyperglycemia, can lead to complications such as neuropathy, which is nerve damage that can cause feelings of numbness, tingling, or pain in the extremities. In patients with prolonged high blood sugar levels, this can result from the damaging effects of elevated glucose on the small blood vessels that supply nerves, leading to impaired nerve function.

The other options typically do not indicate high blood sugar levels. Excessive sweating is more commonly related to low blood sugar (hypoglycemia) or other conditions. Bradycardia, or a slow heartbeat, and dry skin can be associated with a range of issues not specific to hyperglycemia. Understanding the signs and symptoms associated with blood sugar levels is crucial for managing diabetes effectively and preventing complications.