Afternoon Drowsiness

It is well known that ambient light can influence aspects of human physiology including brain function, circadian rhythm, heart rate, and hormone release. But most studies of this have focused on the effects of light during the night; few have examined the body's response to light during the day.

New studies exposed participants to 21 minutes of bright white light in the morning. They became more alert, and brain images showed that regions of the brain involved with alertness and some cognitive processes became more active.

Those brain regions are also involved with attention and arousal regulation. This means that light exposure DOES affect performance and alertness at work.

Sitting inside a poorly lit office surrounded by incandescent or fluorescent lighting day and night starve your body of the unfiltered ultraviolet light that helps your body produce vitamin D. Full-spectrum light improves our health. More lumens the better!

The human race evolved under the sun, and for thousands of years lived in close harmony with its heat and light. Sunlight not only increases your energy and general well being, but it also helps:

• Lowers your cholesterol
• Teats multiple sclerosis and osteoporosis
• Prevent and treats cancer
• Lowers your blood pressure
• Increases the value of exercise
• Improves your body's ability to detoxify

See the light ... the bright natural light.

The Different Types of Multiple Sclerosis

In some ways, each person with multiple sclerosis lives with a different illness. Although nerve damage is always involved, the pattern is unique for each individual with MS. Specific experiences with MS may vary widely, but doctors and researchers have identified several major types of MS. The categories are important because they help predict disease severity and response to treatment.

Myths and Facts About Multiple Sclerosis

If you're getting a lot of confusing advice about living with multiple sclerosis, you're not alone. Friends may be quick to offer suggestions, but sometimes they just repeat old myths. Getting the facts straight can help you lead a full life.

Primary Progressive Multiple Sclerosis

In primary progressive multiple sclerosis, symptoms continually worsen from the time of diagnosis. There are no well-defined attacks, and there is little or no recovery. Between 10% and 15% of people with MS have primary progressive MS.

Several aspects of primary progressive MS distinguish it from other types of MS:

• People with primary progressive MS are usually older at the time of diagnosis -- an average age of 40. 
• Roughly equal numbers of men and women develop primary progressive MS. In other types of MS, women outnumber men three to one. 
• Primary progressive MS usually leads to disability earlier than relapsing-remitting MS (see below). 

Perhaps the most upsetting difference in primary progressive MS is its poor response to treatment. So far, no treatments have been shown to help, although studies are ongoing.

Relapsing-Remitting Multiple Sclerosis

Most people with multiple sclerosis, around 90%, have the relapsing-remitting type. Most people with this type of MS first experience symptoms in their early 20s. After that, there are periodic attacks (relapses), followed by partial or complete recovery (remissions).

The pattern of nerves affected, severity of attacks, degree of recovery, and time between relapses all vary widely from person to person. Eventually, most people with relapsing-remitting MS will enter a secondary progressive phase of MS.

Secondary Progressive Multiple Sclerosis

After living with relapsing-remitting MS for many years, most people will develop secondary progressive MS. In this type of MS, symptoms begin a steady march, without relapses or remissions. (In this way, secondary progressive MS is like primary progressive MS.) The transition typically occurs between 10 and 20 years after the diagnosis of relapsing-remitting MS.

It's unclear why the disease makes the transformation from relapsing-remitting to secondary progressive MS. A few things are known about the process:

• The older a person is at original diagnosis, the shorter the time for the disease to become secondary progressive. 
• People with incomplete recovery from initial relapses generally convert to secondary progressive MS sooner than those who recover completely. 
• The process of ongoing nerve damage changes. After the transformation, there's less inflammation, and more slow degeneration of nerves.

Secondary progressive MS is challenging to treat -- and to live with. Treatments are moderately effective at best. Progression occurs at a different rate in each person and generally leads to some disability.

Progressive Relapsing Multiple Sclerosis

Progressive relapsing multiple sclerosis is the least common form of the disease. Relapses or attacks occur periodically. However, symptoms continue and are progressive between relapses.

Progressive relapsing MS is rare enough that little is known about it. Probably around 5% of people with multiple sclerosis have this form. Progressive relapsing MS seems similar to primary progressive MS in many ways.