10 things that can unexpectedly cause blood sugar levels to spike

Jul 21, 2025 Lifestyle Desk

Poor sleep:

A restless night can lower insulin sensitivity. Try maintaining a regular sleep schedule. Source: pexels

Stress:

Emotional or physical stress leads to a spike in blood sugar. Ten minutes of deep breathing, gentle walking, or mindfulness practice daily can help. Source: pexels

Dehydration:

Dehydration causes a blood sugar spike. Keep a water bottle handy and sip throughout the day. Source: pexels

Certain medications:

Steroids and some antidepressants can disrupt sugar control. Always consult a doctor before changing any medication routine. Source: pexels

Skipping meals:

Leaving long gaps between meals is harmful. Eat a diet that includes a mix of fiber, protein, and healthy carbs at regular intervals. Source: pexels

Artificial sweeteners:

Though calorie-free, some sweeteners can still confuse the body’s insulin response. Consider natural alternatives. Source: pexels

Hidden sugars in packaged foods:

Even foods marketed as ‘healthy’ can contain unexpected sugar. Source: pexels

Illness or infections:

From a mild fever to a urinary infection, your body releases stress hormones that increase blood sugar levels. Monitor your levels more closely when unwell. Source: pexels

Over-exercising:

Intense workouts without sufficient fuel can spike blood sugar levels due to the release of stress hormones. Balance exercise with proper nutrition. Source: pexels

Hormonal changes:

Women often experience fluctuations during menstruation, pregnancy, or menopause. Source: pexels

What can you do?

Staying hydrated, managing stress, eating balanced meals, and tracking your body’s responses can keep your sugar levels stable. Source: pexels

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