Why does trauma from the past have such a bad effect on our physical health today?

I believe it effect ones mood, which will effect ones daily routine of a "healthy" lifestyle.

Speaking, mainly about eating habits, and a run-down feeling. It starts a downward spiral effect that honestly begins to manifest physically in time.

The process of reconciling the trauma is the cause, and the declining physical health is the, possible, effect.

This could be a good indicator that a person could use help "reconciling" the trauma you refer to.

People who experience a traumatic event personally or witness them go through a difficulty period adjusting and coping with the event. The symptoms brought on by the event can last for a great amount of time for as little as a few months and up to many years. These symptoms are often distruptive to your life, work, and/or school.

Post-traumatic stress disorder (PTSD) is often diagnosed in such cases. Individuals suffer from PTSD with experiencing such events like sexual or physical assault, war, torture, natural disasters, such as earthquakes. PSTD also affects the many individuals who respond to the event that includes mass casualties or other tragedies. These kinds of events cause intense fear, helplessness, horror, depression, etc.

Signs and symptoms of PTSD typically begin within three months of a traumatic event. In a small number of cases, though, PTSD symptoms may not occur until years after the event.

PTSD symptoms may include:

Flashbacks, or reliving the traumatic event for minutes or even days at a time

Shame or guilt

Upsetting dreams about the traumatic event

Trying to avoid thinking or talking about the traumatic event

Feeling emotionally numb

Irritability or anger

Poor relationships

Self-destructive behavior, such as drinking too much

Hopelessness about the future

Trouble sleeping

Memory problems

Trouble concentrating

Being easily startled or frightened

Not enjoying activities you once enjoyed

Hearing or seeing things that aren't there

PTSD symptoms can fluctuate in frequency. Many individuals may relive the traumatic event numerous times throughout their lifetime. Nightmares and upsetting memories are not uncommon. And during times of higher stress PTSD can often be triggered, for example seeing a major car accident similar tothe one you went through.

I would suggest doing more research at the American Psychological Associations website to find out more. The information I have provided above is just a small piece of the much larger puzzle.

It doesnt if you deal with it as it comes. Wait what kind of trauma? Like you broke your leg in a wreck trauma or daddy touched you trauma? The wreck would have a bad effect as it's a weak spot that deteriorates as you age . .. .