This is quite interesting health article. I would say nature gives answers to all your questions if you really have a niche of understanding and observing nature.

MUSHROOM – EAR

Slice a mushroom in half and it resembles the shape of the human ear.
And guess what? Adding it to your diet could actually improve your hearing.
That’s because mushrooms are one of the few foods in our diet that contain vitamin D.
This particular vitamin is important for healthy bones, even the tiny ones in the ear that transmit sound to the brain.

BANANA (SMILE) – DEPRESSION

Cheer yourself up and put a smile on your face by eating a Banana.
The popular fruit contains a protein called “Tryptophan”.
Once it has been digested, “Tryptophan” gets converted in a chemical neurotransmitter called “Serotonin”.
This is one of the most important mood-regulating chemicals in the brain and most anti-depressant drugs work by adjusting levels of “Serotonin” production.
Higher levels are associated with better moods. So eat Banana to keep smiling and being happy.

BROCCOLI – CANCER

In a close-up, the tiny green tips on a Broccoli head look like hundreds of cancer cells.
Now scientists know this disease-busting veggie can play a crucial role in preventing the disease.
Last year, a team of researchers at the US National Cancer Institute found just a weekly serving of broccoli was enough to reduce the risk of prostate cancer by 45 per cent.
In Britain, prostate cancer kills one man every hour. So eat broccoli and keep the cancer away.

GINGER – STOMACH

Root Ginger, commonly sold in supermarkets, resembles our stomach.
So it’s interesting that one of its biggest benefits is aiding digestion.
The Chinese have been using it for over 2,000 years to calm the stomach and cure nausea, while it is also a popular remedy for motion sickness.
But the benefits could go much further.
Tests on mice at the University of Minnesota found injecting the chemical that gives ginger its flavor slowed down the growth rate of bowel tumors.

CHEESE – BONES

Cheese with holes is not just good for your bones but also resembles internal structure of bones.
Cheeses is a rich source of calcium, a vital ingredient for strong bones and reducing the risk of Osteoporosis later in life.
Together with another mineral called phosphate, it provides the main strength in bones but also helps to power-up muscles.
Getting enough calcium in the diet during childhood is crucial for strong bones.
A study at Columbia University in New York showed teens who increased calcium intake from 800mg a day to 1200mg – equal to an extra two slices of cheddar – boosted their bone density by six per cent.

GRAPES – LUNGS

Our lungs are made up of branches of small airways that finish up with tiny bunches of tissue called “Alveoli”.
These structures, which resemble bunches of grapes, allow oxygen to pass from the lungs to the blood stream.
One reason that very premature babies struggle to survive is that these “Alveoli” do not begin to form until week 23 or 24 of pregnancy.
A diet high in fresh fruit, such as grapes, has been shown to reduce the risk of lung cancer and emphysema.
Grape seeds also contain a chemical called “Proanthocyanidin”, which appears to reduce the severity of asthma triggered by allergy.

TOMATO – HEART

A Tomato is red and usually has four chambers, just like our heart.
Tomatoes are also a great source of “Lycopene”, a plant chemical that reduces the risk of heart disease and several cancers.
Lab experiments have also shown that “Lycopene” helps reduce unhealthy LDL cholesterol and hence helpful in protecting your Heart from cardiovascular diseases.
The Women’s Health Study — an American research program which tracked the health of 40,000 women — found women with the highest blood levels of “Lycopene” had 30 per cent less chance of heart disease than women who had very little “Lycopene”.

WALNUT – BRAIN

The gnarled folds of a walnut resembles the appearance of a human brain, and provide a clue to it’s benefits.
Walnuts are the only nuts which contain significant amounts of omega-3 fatty acids.
They may also help head off dementia. An American study found that walnut extract broke down the protein-based plaques associated with Alzheimer’s disease.
Researchers at Tufts University in Boston found walnuts reversed some signs of brain aging in rats.