The liver is the only internal organ that can regenerate itself. In fact, you can lose up to 75 percent of your liver, and the remaining parts can regenerate itself into a whole liver again.

Sperm are the smallest cells in the body and millions of them are made. The cytoplasm contains nutrients for the growth of the early embryo. The haploid nucleus contains the genetic material for fertilisation. The cell membrane changes after fertilisation by a single sperm so that no more sperm can enter.

The head of the sperm contains the DNA, which when combined with the egg’s DNA, will create a new individual. The tip of the sperm head is the portion called the acrosome, which enables the sperm to penetrate the egg. The midpiece contains the mitochondria which supplies the energy the tail needs to move.

The most important organelles in the sperm cell are the Nucleus, the Mitochondria, and the Acrosome. Contains the DNA used to fertilize the egg.

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Our bodies can heal almost anything. When they don’t, it often isn’t because the disease is too powerful. The problem is that the body’s own healing mechanism is impaired. The best approach is to restore this natural mechanism.

But the heart does have some ability to make new muscle and possibly repair itself. The rate of regeneration is so slow, though, that it can’t fix the kind of damage caused by a heart attack. That’s why the rapid healing that follows a heart attack creates scar tissue in place of working muscle tissue.

7 powerful ways you can strengthen your heart

1. Get moving. Your heart is a muscle and, as with any muscle, exercise is what strengthens it.
2. Quit smoking. Quitting smoking is tough.
3. Lose weight. Losing weight is more than just diet and exercise.
4. Eat heart-healthy foods.
5. Don’t forget the chocolate.
6. Don’t overeat.
7. Don’t stress.

Here are 15 foods that you should be eating to maximize your heart health.

• Leafy Green Vegetables. Leafy green vegetables like spinach, kale and collard greens are well-known for their wealth of vitamins, minerals and antioxidants.
• Whole Grains.
• Berries.
• Avocados.
• Fatty Fish and Fish Oil.
• Walnuts.
• Beans.
• Dark Chocolate.

Keep the fuss to a minimum and stick with the basics.

1. Lunges. Challenging your balance is an essential part of a well-rounded exercise routine.
2. Pushups. Drop and give me 20!
3. Squats.
4. Standing overhead dumbbell presses.
5. Dumbbell rows.
6. Single-leg deadlifts.
7. Burpees.
8. Side planks.

7 Most Effective Exercises

• Walking. Any exercise program should include cardiovascular exercise, which strengthens the heart and burns calories.
• Interval training.
• Squats.
• Lunges.
• Push-ups.
• Abdominal Crunches.
• Bent-over Row.

“Human evolution led to five basic movements, which encompass nearly all of our everyday motions.” Meaning your workout needs just five exercises, one from each of these categories: push (pressing away from you), pull (tugging toward you), hip-hinge (bending from the middle), squat (flexing at the knee), and plank ( …

There is no limit to how many push-ups one can do in a day. Many people do more than 300 push-ups a day. But for an average person, even 50 to 100 push-ups should be enough to maintain a good upper body, provided it is done properly. You can start with 20 push-ups, but do not stick to this number.

If doing a 100 Push Ups is hard for you, then your muscles will need some recovery afterward. If 100 Push Ups is not hard for you, then it will just be a short muscle endurance workout for you. It wouldn’t over train or even pump your muscles significantly. It would be a waste of time or a nice warm up.