Traditionally, the mind-body connection related to the notion that emotions, thoughts, social activities, spiritual practices, and behavior can affect our health. Today, thanks to some intrepid geneticists, we not only know this is true, but also the reason it occurs.

Ever since the discovery of genes, scientists have followed the path of genetic disposition and have strived to fight or prevent disease based on an individual’s genetic code. But, the new science of epigenetics has scientists looking at a much bigger picture.

Let’s take a look at what epigenetics means. Genetics is the study of heredity, or how the characteristics of living things are transmitted from one generation to the next. Every living thing contains the genetic material that makes up DNA molecules. This material is passed on when organisms reproduce. The prefix epi is derived from a Greek word that means “on, upon, at, by, near, over, on top of, toward, against, among.” Now, when we combine the prefix epi with the word genetics, we are referring to what occurs upon, over or on top of the expression of genes.

Biologists studying epigenetics understand that environmental factors, such as stress and nutrition, to name a few, affect your genetic expression. And, what these biologists know with certainty is that the expression of your genes, not the genes themselves, dictates whether you develop certain diseases or age prematurely. In other words, one may have the “obesity gene,” but if nothing in the environment triggers that gene, it will never express as obesity.

This means that how you respond to what’s happening in your environment—whether it’s stress at work, final exams, or emotional or physical abuse—has a far greater effect than the event itself. In other words, when it comes to your body, perception is reality.

If you are chronically forlorn, for example, this negative emotion will influence the expression of your genes and thus impact your risk of developing disease. Conversely, there are many obese people, and even heavy smokers, who lead optimistic, balanced lives who are in much better health than their lean or non-smoking, but pessimistic, counterparts.

Dawson Church, in his book, The Genie in Your Genes: Epigenetic Medicine and the New Biology of Intention, reports that heart surgery patients who have a strong social support network and spiritual practice have one-seventh the mortality rate of those who don’t.

So, how do you start feeling optimistic when you’re feeling everything but? Well, you can start by recognizing that pessimism is nothing more than a habit—a learned response. And, the good news in that is that habits can be changed.

Habits are formed by the brain when we do something consistently over time. The brain recognizes the pattern and builds a neuropathway. Then, whenever the situation presents itself again, your brain takes that same neuropathway, which is now the path of least resistance. Neuropathways that are used regularly get stronger, and those that aren’t used at all disconnect.

So, the trick to changing habits is consistently doing the positive, new behavior you want until it forms a new neuropathway. Sound like a lot of time and effort? It doesn’t have to be. Since the brain doesn’t know the difference between real and imagined, and because time doesn’t exist at the other-than-conscious level of the mind, visualization can help you form new habits quickly and comfortably. This is where braintapping comes in. With proven technology-enhanced meditation that uses brain wave algorithms and visualization, you can quickly form the positive new habits that will give you a happier life and help safeguard your health.

And, if that’s not enough to convince you, a May 2014 study by the Institute of Science in Society showed that the relaxation response, as achieved through meditative practices, has been shown to positively affect at least 2,209 genes.

Stay ahead of age-related changes in thinking skills by making the most of your brain’s memory process.

We all have moments of forgetfulness about where we put the keys, why we walked into a room, or what an object is called. Most likely, this reflects age-related changes in thinking skills. “In terms of brain function, everyone has a decline over time in all areas, with the exception of vocabulary,” says Dr. Joel Salinas, a neurologist specializing in behavioral neurology and neuropsychiatry at Harvard-affiliated Massachusetts General Hospital.

How memory works

Memory involves three processes: encoding, recording, and retrieval. The brain receives and encodes (takes in) new information; the brain then records (stores) the information; finally, the brain retrieves information when you need it.

Many brain regions are involved in this process. For example, the cerebral cortex — the large outer layer of the brain — acquires new information as input from our senses. The amygdala tags information as being worthy of storage. Nearby, the hippocampus stores memories. And the frontal lobes help us consciously retrieve information.

The aging memory

Many people notice a difference in memory starting in their 50s. That’s when age-related chemical and structural changes can begin in brain regions involved with memory processing, such as the hippocampus or the frontal lobes. These changes may slow processing speed, making it hard to recall familiar names or words.

Other factors may be at play as well. “Working memory — a mental scratch pad that allows us to use important information throughout the day — is susceptible to depression, anxiety, and stress,” explains Dr. Salinas, “and a lack of sleep can affect the brain’s retention and use of information.”

A medication side effect may also affect memory. For example, if you use an anti-anxiety drug like clonazepam (Klonopin), its sedating side effects can make your brain less alert and more sluggish. This in turn makes it more challenging for your brain to carry out the essential encoding, recording, and retrieval steps of memory.

Dr. Salinas says addressing these problems first often helps improve memory.

Memory tricks

Another way to boost memory is to make the most of the way it works. The following strategies may help.

1. Repeat what you hear out loud, such as someone’s name, or an address, or a new idea.Repetition increases the likelihood you’ll record the information and be able to retrieve it later. “With each repetition, your brain has another opportunity to encode the information,” explains Dr. Salinas. “The connections between brain cells are reinforced, much like blazing a trail in the woods. The more you walk the same trail, the easier it is to walk it the next time.”

2. Make a note of people you need to call, errands to run, and appointments. “We are much better at recognition than recall,” Dr. Salinas explains. “With recognition, such as reading a list, you have additional hooks or hints that help you find the information you’re looking for.”

3. Make associations between old and new information. Connect a person’s first name to something familiar. For example, if the person’s name is Sandy, imagine that person on a beach. Or create a story around a shopping list. “Our brain is good at sequences, and putting things into a story helps. The more ridiculous, the more memorable it is. For example, if your list is milk, eggs, and bread, the story could be that you are having milk with Elvis over an egg sandwich,” Dr. Salinas suggests.

4. Divide information into chunks, such as taking a long number and remembering it more like a phone number. “It’s hard to store a long number,” says Dr. Salinas, “but easier to store little bits through working memory.” If you’re trying to memorize a speech for a wedding toast, focus on getting only one sentence or idea down at a time, not the whole speech in one take.

When tricks don’t help

Forgetting something minor from time to time is probably normal. It’s not normal when memory changes interfere with day-to-day functioning. Dr. Salinas recommends that you talk to your doctor if you’re making more mistakes than usual at work; having difficulty paying the bills; or having trouble completing tasks, cooking, emailing, or doing chores. But don’t panic. “More often than not, there’s a temporary or reversible cause behind your memory slips. Once that’s taken care of, you can get back to your more usual remembering self,” says Dr. Salinas.