There's been a lot of research on the benefits of physical activity and staying fit. So which is worse for your health; being obese and fit, or being normal weight and unfit?

They are common, painfully disabling, and can impair quality of life. Headaches have been under-estimated, under-recognised, and under-treated around the world. Overuse of medications can even cause headaches.

The brain can be injured when either the head or body undergo a sudden acceleration, deceleration or rotation. Concussions don't always cause loss of consciousness, and sometimes the injury is missed

Study-populations with similar lifestyle practices and yet a variety of dietary patterns help nutritionists begin to find answers to questions about longevity, super-foods, and all-round health

One in two teenage girls, and one in three teenage boys, use unhealthy weight control measures. Models and actors, and some athletes are often unhealthily preoccupied with looking thin or being lean.

Opiates - those derived from the poppy seed and synthetic opiates - are effective pain killers, but they can also produce euphoria, and so are very addictive, but deadly if taken inappropriately

Alcohol misuse is the leading cause of premature death and disability worldwide for people aged 15 to 50, but only 10% of those with an alcohol problem recognise that they have one.

Amphetamines are prescribed for ADHD, weight loss, and sleep disorders, and then there are illegally made amphetamines; but all are highly addictive. Find out some signs of amphetamine addiction.

Health risks vary between men and women, but a father's example is a powerful influence over his family's health, and he can increase his children's risk of various lifestyle diseases by his example.

COPD is characterised by breathlessness, coughing, wheezing, and tightness in the chest. It is most commonly the result of smoking.

A study of over 1/2million people investigated the effect of diet, lifestyle, and environment on the incidence of cancer and chronic diseases. The results will help you reduce your risk of chronic disease

Apple slices turn brown, nuts become rancid, old cars rust, all because of oxidation. This happens in our bodies too so we age and get sick. Happily, there are many antioxidants within our reach

Mobile, wireless, wearable, gaming, and connected health are all tools available in the health and wellness landscape. Surrounded by technology, are we using it to its best advantage for our health?

Games usually mean being with friends and family and having fun. Some games are silly, some serious, but they're usually fun, so why not turn being healthy into a game?

Many adults take one or more dietary supplements daily, such as vitamins, minerals, herbals, and probiotics. Are there safeguards to their use, and how can you tell is they are effective?

The China Study is said to be the most comprehensive study of health and nutrition that has ever been conducted. Today Dr Nerida interviews the man behind the research.

Surprisingly, Americans of all ages have poorer health then their counterparts in other wealthy countries. Dr Nerida asks why, and how we can stem the tide of chronic disease?

Caffeine is one of the most researched food components on our tables today, and caffeinated drinks are considered an essential part of daily life for many people. But can a drug really be good for you?

Too many deaths each year are caused by gynaecological cancers, often because women are unaware of the signs and symptoms until too late. So what signs should we watch for, and what about prevention?

Seeing low rates of heart attacks and strokes in rural China while most Americans had early atherosclerosis, Dr Esselstein took 23 people with terminal heart disease, and turned their health around.

The process by which we see what is around us is very complex, so how often can something go wrong with the visual process? Viewer discretion is advised for surgical scenes.

Having lots of sugar in your blood can really harm your blood vessels, increasing the risk of stroke and heart disease. But it need not happen with lifestyle change that reverses diabetes; so keep those sugars down.

Chronic disease is often managed with pills and temporary fixes, but to make a real impact we need to adress the underlying causes and change the way we think about the diseases from which so many of us suffer.

The brain is divided into sections, the largest being the cerebrum, which in turn is divided into lobes. The frontal lobe is the most common place for brain injury to occur; so what happens then?

Any one of us can develop back pain, even children and teens, and many things can be blamed from physical to psychological factors. But occasionally, back pain indicates something more serious.

The incidence and types of disorders of the digestive tract has changed dramatically during the 20th century. Now, the older you are, the higher the risk of many of these diseases.

Thousands and thousands of deaths occur every year because of inactivity. It is a cause of high blood pressure, heart disease, depression, cancer, strokes, osteoporosis, and obesity. It's time to act!

Every 5 years the International Congress on Vegetarian Nutrition attracts experts from around the world to share their latest discoveries and their personal insights into a host of nutritional matters.

It's well established that nutrition can substantially affect mood, behaviour, and brain function. And our brains use 20-30% of our total energy intake; so skipping breakfast can have big consequences.

What many people do not know is that here is sufficient iron in green leafy vegetables, and protein in whole grains and legumes; but other nutrients are limited in a vegetarian diet.

Many of us have changed our behaviours to now live in a way that will ensure water, materials and resources for future generations. But what we eat can make a difference to our environment too.