If you really want to lose fat, intermittent fasting is the perfect tool. Research shows that intermittent fasting — cycling in and out periods of fasting and eating — has huge benefits for your body and brain. It can ward off chronic disease, improve memory and brain function, and boost your energy levels. What’s more, intermittent fasting is a powerful hack for losing weight quickly, and keeping it off.
I sometimes hear people say, "I'm giving up chocolate" and they regard this as a type of fasting. I think this is a rather frivolous approach. The first and foremost purpose of a biblical or spiritual fast is to get a breakthrough on a particular matter that one lifts up to the Lord in prayer. A spiritual fast involves our hearts and the way in which we relate to and trust God. It relates to discerning and receiving strength to follow through on what God might reveal to us about circumstances in our lives or a direction we are to take.
Again, I wouldn't say intermittent fasting is for everyone, but it has made a big difference in my life. It has allowed me to feel in control of my relationship with food and less anxious about it in general, which is always a good thing. I feel more energetic, I'm continuing to lose weight, and I generally feel amazing. I'll definitely be doing intermittent fasting for the foreseeable future.

No, it's not a cure-all for creaky joints, wrinkled skin, or brittle hair, but IF prompts an increase in human growth hormone (HGH), which promotes cellular repair, says Foroutan. She explains that not eating for several consecutive hours creates a slight stress on your cells' mitochondria (the energy powerhouses), which gives them a nudge to rev up their functioning. IF might also be helpful for brain health; animal studies suggest that this eating pattern might serve to ward off age-related cognitive decline.
Fasting helps you build a better brain, too. Intermittent fasting increases a protein in your brain called BDNF that researchers have nicknamed “Miracle-Gro for your brain.”[7] BDNF improves learning and memory and can help you forge stronger neural pathways, making your brain run faster and more efficiently, which is especially important as you age.
César Chávez undertook a number of spiritual fasts, including a 25-day fast in 1968 promoting the principle of nonviolence, and a fast of 'thanksgiving and hope' to prepare for pre-arranged civil disobedience by farm workers.[17][19] Chávez regarded a spiritual fast as "a personal spiritual transformation".[20] Other progressive campaigns have adopted the tactic.[21]

Keep in mind; the purpose of a fast is to draw closer to The Lord. You are setting aside a specific time to fill up with more of God. It’s not a competition; don’t overthink it. Jesus lived as one of us for over thirty years, and fasted often. He understands what you’re going through. Matthew tells about one of Jesus’ fasts in Matthew 4:2, “After fasting forty days and forty nights, he was hungry” (NIV). This happened just before Jesus was tempted in the desert and then started His full-time ministry. Don’t underestimate the power of taking a step closer to God.
Dietrich Bonhoeffer, in his book The Cost of Discipleship, said, “Jesus takes it for granted that His disciples will observe the pious custom of fasting. Strict exercise of self-control is an essential feature of the Christian life. Such customs have only one purpose — to make the disciples more ready and cheerful to accomplish those things which God would have done.”
When you eat a meal, your body spends a few hours processing that food, burning what it can from what you just consumed.  Because it has all of this readily-available, easy to burn energy (thanks to the food you ate), your body will choose to use that as energy rather than the fat you have stored.  This is especially true if you just consumed carbohydrates/sugar, as your body prefers to burn sugar as energy before any other source.
Additionally, alternate-day fasting and whole-day fasting have been shown to not only reduce body fat but also total cholesterol and triglycerides in both overweight and normal-weight people, according to a study analysis in Nutrition Reviews. Because intermittent fasting can stabilize insulin levels—if you don’t eat, your blood sugar will come down—there’s reason to believe it could be a good diet for people with Type 2 diabetes, Varady adds. Research also suggests that intermittent fasting may even help prevent Alzheimer’s and cancer, adds Fung.
Fasting is often used as a tool to make a political statement, to protest, or to bring awareness to a cause. A hunger strike is a method of non-violent resistance in which participants fast as an act of political protest, or to provoke feelings of guilt, or to achieve a goal such as a policy change.[citation needed] A spiritual fast incorporates personal spiritual beliefs with the desire to express personal principles, sometimes in the context of a social injustice.[17]
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