Should We See Obesity as a Disease?

Recently, the American Medical Association (AMA) recognized that obesity is a disease. This decision was actually the exact opposite of the recommendations made by the AMA's own investigating committee. What was the AMA's reasoning? To try and stop the growing epidemic of obesity by changing the way doctors and insurance companies view those with a Body Mass Index (BMI) of more than 30.

For sure, obesity is starting to get out of hand. The World Health Organization (WHO) estimates that obesity affects over 500 million adults and 40 million children under the age 5 worldwide. This represents about 10 percent of the population. The WHO also believes that obesity is now the fifth leading cause of death (globally) and is strongly associated with degenerative diseases like heart disease, diabetes, and some cancers. (1)

The age-adjusted rate of obesity in the US (in 2008).

Like many other bloggers, I'm happy to hear that the medical community is taking obesity more seriously, but am also conflicted about the decision to see obesity as a disease.

Obesity as a Disease

Let me start with the most obvious question: Is obesity a disease? This question can be answered by looking at the definition of disease:

Disease (n): a disordered or incorrectly functioning organ, part, structure, or system of the body resulting from the effect of genetic or developmental errors, infection, poisons, nutritional deficiency or imbalance, toxicity, or unfavorable environmental factors; illness; sickness; ailment. 

By this definition, the AMA is correct in seeing obesity as a disease, as excessive amounts of body fat can cause health problems elsewhere in the body.

For instance, researchers are finding out that body fat cells don't just store energy, they collectively act as an endocrine organ that produce both inflammatory and anti-inflammatory chemical messengers (known as cytokines). (2) The pro-inflammatory cytokines include TNF-a, IL-1, IL-6, IL-18, and leptin. If a person has too much body fat, too much of these pro-inflammatory chemical messengers can cause a number of problems throughout the body, including rheumatoid arthritis, (3) asthma, (4) systemic inflammation, (5) diabetes, (6) atherosclerosis, (7) depression, (8) Alzheimer's Disease, (9) Celiac's Disease, (10) and certain cancers (11)

How to Build Muscle and Strength, Part 2: More Exercise Strategy

Because there was so much interest in the last post of this series (it's now my most popular post!), I decided to add some more of the interesting muscle-building exercise strategies that I've discovered during my recent research. The body weight exercises are especially fun!

Overload Training

In an effort to experience maximum intensity, I use a method of overload called max contraction. (1) The basic idea of max contraction is to hold a weight that is between 110% to 120% of your 1-Rep Max (1RM) for no more than 6 seconds. While you are holding this weight, you are keeping it stationary at the most disadvantageous position (usually with a joint at 90 degrees). If a person can only hold a weight for a maximum of 1-2 seconds, then their target muscle group has experienced the most intensity possible.

There are two reasons that I use overload training:

• Achieve maximum muscle fiber recruitment to build strength quickly. (2,3)
• Overcome protection mechanisms in the brain that prevent a person from lifting more weight, preventing a plateau. (4)

Since I concentrate on one muscle group per day, my first exercise is overload. So, if I were doing chest, I would do a few reps of one-arm max contraction dumbbell bench presses (I use dumbbells so that I can spot myself). I take a single 110-pound dumbbell, lie down on the bench, and lower the weight with only one arm (assisted by the other) until my upper arm is parallel with the floor, and my elbow is bent at a 90-degree angle. I hold the dumbbell stationary for 6 seconds. I repeat this with the other arm to complete my set.

This is the one-arm dumbbell bench press. When the weight starts to get heavy, you will have to shift your weight to the center of the bench to maintain balance.

I only go up in weight if I can hold the weight for more than 6 seconds. If I can't, then I will use the same weight until I can hold it for 6 seconds.

This style of exercise is very intense, so you can't do too many of them. I limit myself to a maximum of three total reps per daily workout, giving myself 1-2 minutes of rest between each complete max contraction rep. For example, if I were exercising my back I would use the one-arm pull-up as my overload exercise. After I completed three max contraction reps (or 3 sets of 1 rep) I would then move on to a traditional, heavy, full-range back exercise (like weighted pull-ups).

Max contraction is only one part of my approach to building muscle. When I experimented with this style of exercise, I got stronger, but not bigger. So I use max contraction to help drag my traditional, heavy, full-range exercises up in weight. I then use these heavy exercises (as well as my volume training) to maximize hypertrophy (i.e., growing muscle).

How to Build Muscle and Strength, Part 1: Exercise Strategy

There are probably thousands of different exercise programs that you can use, and some are better than others. In truth, there is no single perfect exercise program; however, not all programs will effectively build muscle or "burn" fat. To help you get more bang for your exercise buck, I have assembled four simple and effective muscle-building lessons that are commonly missed by many exercisers.

Lift Heavy

When it comes to building muscle and strength, nothing beats heavy weight lifting. Not even high-intensity interval training (a.k.a., Tabatas) can produce the same muscle gains as lifting very heavy stuff.

Many people are hesitant to lift heavy because they don't want to become too bulky. But this is really a non-issue: Without drugs, building excess muscle is very difficult, requiring years (decades) of dedicated effort. In fact, choosing the wrong exercises, using poor technique, and hesitation to lift heavy only succeed in preventing individuals from making consistent and life-long gains towards building the body of their dreams.

Use Compound Exercises Instead of Isolation Exercises

When lifting heavy, you should really concentrate on basic compound movements. Compound movements involve more than one joint (e.g., squats, shoulder press, bench press). By contrast, isolation movements only exercise one joint (e.g., bicep curls, calf raises).

Because compound exercises involve more than one muscle group they cause desirable changes in muscle-building hormones testosterone, human growth hormone (HGH), and insulin-like growth factor 1 (IGF-1).

Learn Proper Technique

You can't just go heavy right away. You first have to learn the correct technique for each exercise you decide to use. Proper technique ensures that every rep helps to build muscle and/or increase strength. Poor technique, on the other hand, usually results in lack of progress. If you combine poor technique with heavy weights then you will inevitably develop injuries that will prevent you from exercising.

With the existence of YouTube and Bodybuilding.com, getting good advice on proper technique is easy enough to accomplish. There are also TONS of books that can help you learn the proper way to execute an exercise.

Females and Muscle

When it comes to women lifting weights, I constantly hear about fear of building a huge physique. Fortunately for women, they do not have the necessary amount of testosterone to build big bulky muscles. So, if a woman lifts heavy, she won't look like a competitive bodybuilder, she will only produce positive body composition (trading fat for muscle).

Often, many women (and men) will start to exercise and initially not see any weight loss. Don't be alarmed! If you gain as much muscle as you lost in fat, then your body composition has improved, even if the weight scale doesn't show a change. This improved body composition helps drop your body fat percentage and gives the appearance of a slimmer, more attractive physique. Eventually, once your body no longer needs to build muscle in response to your exercise, you will start to lose weight (until you reach a more healthy weight).

How to Build Muscle and Strength: Intro

Whether you are 15 or 75, man or woman, you should exercise 5-6 days a week. When you do exercise, you should always strive to build muscle and strength. Of course, building more muscle will make you look and feel great, as well as make life easier for you on a day-to-day basis. But the biggest reason that you should exercise to gain muscle is because your health and fitness are unavoidably connected to the amount of lean mass you have.

Building muscle quickly, consistently, and with the least effort possible is the focus of this four-part series. Since high school, I've always been obsessed with building muscle. However, I don't like spending much time in the gym. This has pushed me towards efficient exercise programs.

This quest for a super efficient program happened by accident. For most of my life, I've been relatively successful slowly building muscle. But, for the last two years, I've been unable to get any heavier. Consequently, because I started to plateau, I had to do some research to find the most effective techniques to get the results I wanted. My goal was then to put together the best techniques into a single efficient program. Although it took me a while, I have finally managed to put together all the tricks that make your body grow muscle like a Spartan!

Building Muscle 101

Growing new muscle (or losing the muscle you already have) is determined by the balance between muscle synthesis and muscle degradation. (1) When exercising, this balance gives a person one of three possibilities:

• If muscle synthesis is less than muscle degradation, then muscle mass is lost.
• If muscle synthesis is equal to muscle degradation, then muscle mass is unchanged.
• If muscle synthesis is greater than muscle degradation, then muscle grows.

The first and second possibilities explain why low-intensity cardio or light weights do not usually grow muscle (or can cause a person to lose muscle). If you don’t need the muscle because your effort is too low, then your brain will get rid of it. If you have just enough strength, then you’ll maintain the muscle you have.

To make the last possibility happen (building more muscle), a person has to create a demand for new muscle (i.e., get stronger). This demand can be simulated with heavy or high intensity exercises.

Creating optimal feedback for new muscle is notoriously difficult to do. More often than not, you’re program will not stimulate enough muscle synthesis or it will generate too much muscle degradation (or both). For example, a person can:

• Create too much or too little muscle damage
• Receive too much or too  little recovery time
• Not receive adequate nutrition
• Not stimulate enough muscle-building hormones (known as anabolic hormones)
• Stimulate too much muscle-destroying hormones (known as catabolic hormones)