Don't do an IQ test after a full week's work if you are 40 years or older. You could be disappointed.

If you're over 40, working more than 25 hours of work a week could be impairing your intelligence, according to a study released in February by researchers for the Melbourne Institute of Applied Economic and Social Research in Australia. The team conducted reading, pattern and memory tests in more than 6,000 workers aged over 40, to see how the number of hours worked each week affects a person's cognitive ability.

Working 25 hours a week (part time or three days a week) was the optimum amount of time spent working a week for cognitive functioning, while working less than that was detrimental to the agility of the brain for both men and women, the study found.

"Work can stimulate brain activity and can help maintain cognitive functions for elderly workers, the 'lose it or use it hypothesis'," said lead researcher Colin McKenzie, a professor of economics at Keio University in Tokyo.

It can seem like an exercise in futility to go to great lengths to seek out organic fruits and vegetables for your family, only to prepare and serve them in a kitchen where everything has been cleaned with harsh, toxin-filled chemicals. While focusing on feeding your family healthy foods is vital, you should also keep in mind that commercial cleaning products contain a host of unsavory ingredients that can cause adverse health reactions.

For example, a European study found that people who use a spray cleaner just once a week had a 50 percent higher chance of developing asthma! Glass and furniture cleaners, as well as air fresheners, were all found to be guilty of upping the risk.

Cleanliness is a valid concern in the home, and in food prep areas in particular. Many people fail to realize, however, that some natural methods are just as effective as those harsh chemicals - without any of the dangers. Here is a look at some top choices for natural cleaning.

In recent years, scientists have learned more about the microbes residing in the human gut and how they affect health and wellbeing. We have learned that microbes outnumber human cells in the body - roughly 90% microbes to 10% human cells. We know the microbes in our gut help digest our food and in the process help create vitamins, neurotransmitters, and hormones. We know 80% of our immunity begins in the gut. We are beginning to understand the link between the gut, autoimmune diseases, and neurological syndromes.

Earlier studies confirmed that bacteria in the gut of obese people is different than normal intestinal flora. Thin people have a diverse and plentiful microbial ecosystem in their gut, whereas obese individuals do not. Some particular strains in obese people even differ from those who are lean. Transplanting these microbes can cause obesity in mice studies. Further studies will tell us if the reverse is true, if transplanting healthy microbes can reverse obesity.

According to statistics from the Centers for Disease Control (CDC), the prevalence of autism spectrum disorder (ASD) increased nearly 120 percent from 2000 to 2010—from 1 in 150 children to 1 in 68. It is the fastest-growing developmental disability, with a 10-17 percent increase annually in recent years.

Facing such a dramatic reality, researchers are hard at work trying to understand this brain development disorder. As AutismSpeaks.org points out, there is no one cause of autism just as there is no one type of autism.

Scientific advances over the past decade have shown us that most cases arise from a complex combination of genetics and environmental influences. A small number are associated with a single rare gene mutation, but, in general, there is a genetic predisposition arising from the combinations of thousands of genes, which is acted upon by environmental factors.

Clove, the aromatic and exotic spice, has a long history of medicinal use going back many centuries into early human history. Clove was highly regarded by the German abbess Hildegard von Bingen (1098-1179) for its medicinal properties. Clove is also well known in the traditional medicine of India and China.

Clove comes from clove trees (Syzygium aromaticum) which grow in tropical regions. Oil of Cloves (also known as clove oil or clove essential oil) is steam distilled from flower buds and stems. Clove has several interesting properties, due mainly to its high content of a phytochemical known as eugenol. Clove oil consists of about 75-85% eugenol.

Eugenol is creating interest in both conventional and alternative medicine because of its ability to effectively stop cancer cells.

Clove Oil's Interesting History

Clove has been used for centuries for numbing pain, repelling internal parasites, arthritis and rheumatism, and for treating throat, sinus, and lung infections.Clove is a natural anti-coagulant (see warning at end of article), with anti-fungal, antioxidant, anti-bacterial, anti-tumoral, anti-viral, and anti-inflammatory properties. All the important anti's!

An excellent illustration of clove's anti-viral capabilities occurred in Indonesia in the mid-17th century. The people of Indonesia's islands of Ternate and Tidore (historically called the Spice Islands) used clove extensively throughout their history for wellness. During the mid-1600's the Dutch East India Company controlled the spice trade in the Spice Islands and gained complete control of the clove trees in this area. Any clove trees discovered that didn't belong to the Dutch East India Company were destroyed, thus allowing them to have a complete monopoly of this and other spices.

As a consequence, the islanders who relied on those clove trees died from the epidemics that raged through the region, brought to them courtesy of the same Dutch colonists. Such is the power of clove to protect us.

Among the many things New Yorkers pride ourselves on is food: making it, selling it and consuming only the best, from single-slice pizza to four-star sushi. We have fish markets, Shake Shacks and, as of this year, 74 Michelin-starred restaurants.

Yet most everything we eat is fraudulent.

In his new book, "Real Food Fake Food," author Larry Olmsted exposes the breadth of counterfeit foods we're unknowingly eating. After reading it, you'll want to be fed intravenously for the rest of your life.

Think you're getting Kobe steak when you order the $350 "Kobe steak" off the menu at Old Homestead? Nope — Japan sells its rare Kobe beef to just three restaurants in the United States, and 212 Steakhouse is the only one in New York. That Kobe is probably Wagyu, a cheaper, passable cut, Olmsted says. (Old Homestead declined The Post's request for comment.)

Fraudulence spans from haute cuisine to fast food: A February 2016 report by Inside Edition found that Red Lobster's lobster bisque contained a non-lobster meat called langostino. In a statement to The Post, Red Lobster maintains that langostino is lobster meat and said that in the wake of the IE report, "We amended the menu description of the lobster bisque to note the multiple kinds of lobster that are contained within."

Moving on: That extra-virgin olive oil you use on salads has probably been cut with soybean or sunflower oil, plus a bunch of chemicals. The 100 percent grass-fed beef you just bought is no such thing — it's very possible that cow was still pumped full of drugs and raised in a cramped feedlot.

Cinnamon is a warm, sweet spice that you can sprinkle on top of your latte while consuming a sticky cinnamon roll. In addition to tantalizing your taste buds, cinnamon may improve your ability to learn, new research has found.

The study, published in the journal Neuroimmune Pharmacology, finds that mice that are considered poor learners improve in learning ability after consuming cinnamon.

"This would be one of the safest and the easiest approaches to convert poor learners to good learners," says Kalipada Pahan, Ph.D., lead researcher of the study and the Floyd A. Davis Prof. of Neurology at Rush.

Despite the fact that one can get their daily recommendation of calcium, potassium, and protein from fruits and vegetables, the dairy industry has spent billions of dollars to convince consumers otherwise.

© Vox

Got Milk? We sure hope not. Despite being a somewhat tasty addition to coffee, tea, and delectable treats, the ingredient - when pasteurized - is highly toxic to the human body. In fact, physicians such as Dr. Willet, who has conducted many studies and reviewed the research on the topic, believe milk to be more of a detriment to the human body than an aid.

This is because despite popular belief, the food has never been shown to reduce fracture risk. In fact, according to the Nurses' Health Study, dairy may increase risk of fractures by 50%! This concerning finding is supported by the fact that countries with lowest rates of dairy and calcium consumption (like those in Africa and Asia) have the lowest rates of osteoporosis.

Considering that approximately 3/4 of the world's population is unable to digest milk and other dairy products, it seems clear the food is not an ideal substance for consumption. However, the average consumer doesn't know this. From celebrity endorsements to advertisements by the dairy industry, most have been taught to believe that dairy is an ideal food for optimum health.

Fungal infections caused by Candida are the most common type of fungal infections in the world. Fiercely opportunistic, Candida is a part of everyone's intestinal flora. It doesn't actually cause problems unless it takes over and crowds out the good bacteria. Then it causes numerous health issues. Four different species of Candida make up the majority of fungal infections in the United States: Candida albicans, Candida tropicalis, Candida glabrata, and Candida parapsilosis. If you catch them early, most of these Candida infections can be taken care of with an adjustment in diet.

A Possible Scenario

The conventional medical treatment for Candida involves pharmaceuticals. Somewhat effective in killing Candida, these drugs also kill other microbes in the intestinal tract and leave you without enough beneficial bacteria to fight off other new infections.

The Center for Disease Control has issued a clinical alert to U.S. healthcare facilities asking them to be on the lookout for one such infection associated with high mortality, a resilient species of yeast called Candida auris that has shown resistance to three major classes of antifungals.

Every time we have posted this particular article on Facebook, we have received comments such as, "I can't believe this really true."

Unfortunately, people who are so seemingly trusting in the safety of vaccines seldom take any time to read a package insert or do research as to what is actually in the needle that is injected directly into their blood, or directly into the blood veins of small children and babies. All of the information below is freely available on government websites or on the websites of the vaccine manufacturers themselves.