Cell size is limited by a cell’s surface area to volume ratio. A smaller cell is more effective and transporting materials, including waste products, than a larger cell. Cells come in many different shapes. A cell’s function is determined, in part, by its shape.

As a cell grows bigger, its internal volume enlarges and the cell membrane expands. Unfortunately, the volume increases more rapidly than does the surface area, and so the relative amount of surface area available to pass materials to a unit volume of the cell steadily decreases.

As compared to the smaller cells, larger cells have more issues in moving the required materials inside and excretory products outside. This is because the ratio of the surface is to volume is turning more and more unbalanced and takes much longer time for the cellular processes to take place.

Cells are small because they are more efficient as smaller entities. Information within small cells is transmitted more quickly and efficiently than within larger cells. Thus a higher cell surface area-to-volume ratio, i.e., smaller cell size, is desired for most efficient cellular activity.

When that doesn’t happen, that’s cancer. And so apoptosis can be normal, and in the absence of apoptosis, that can lead to cancer. Too much apoptosis in an otherwise normal human being will result in a number of so-called neurodegenerative diseases where cells die when they’re not supposed to die.

Your body can be subject to starvation after a day or two without food or water. At that time, the body starts functioning differently to reduce the amount of energy it burns. Eventually, starvation leads to death.

During a fast, you may feel a little tired, hungry and irritable — but you should never feel unwell. To keep yourself safe, especially if you are new to fasting, consider limiting your fast periods to 24 hours or fewer and keeping a snack on hand in case you start to feel faint or ill.

One popular method involves 24-hour fasts once or twice a week. Another consists of fasting every day for 16 hours and eating all your food within an 8-hour period. In a review of studies on intermittent fasting and alternate-day fasting, people experienced a 4–7% decrease in abdominal fat within 6–24 weeks (75).

Fasting for a certain number of hours each day or eating just one meal a couple days a week, can help your body burn fat.

How to Successfully do the 20:4 Intermittent Fast. The Warrior Diet plan involves fasting for 20 hours during the day followed by overeating in a 4-hour window at night. For example, you may set your feeding window at 6:00 pm to 10:00 pm.

Exercise plans

1. Do cardio. To lose fat and gain or maintain muscle mass, do moderate- to high-intensity cardio for at least 150 minutes per week.
2. Increase intensity. Increase the intensity of your workouts to challenge yourself and burn calories.
3. Continue to strength train.
4. Take a rest.