The surprising science behind fasting and focus

Most people think fasting is only about food. But fasting has always been about more than the body — it sharpens the mind and clears the spirit.

Think you know how fasting works? Think again.

Matthew 6:16 — “When you fast, do not look somber as the hypocrites do…”
Jesus didn’t say if you fast, but when. The assumption is that fasting is a normal rhythm of faith. Beyond discipline, it’s also about tuning your attention to God.

Scientists have proven fasting changes your brain

Research published in Cell Metabolism shows that fasting triggers the production of brain-derived neurotrophic factor (BDNF), a protein that boosts learning, memory, and focus. It’s like Miracle-Gro for your neurons.

Want sharper focus? Try this simple step

Start small: skip one meal this week and replace it with 10 minutes of prayer and Scripture reading. Keep water nearby and use that time to reset your attention on God.

Why this matters at work

Emails, meetings, and endless notifications scatter your focus. A short fast not only strengthens your spiritual dependence but also clears mental fog. That clarity helps you make better decisions, lead with patience, and bring peace into your workplace.

You don’t need to overcomplicate it. One skipped meal, one moment of prayer, one renewed mind — that’s enough to change how you step back into your day.