### stress:

Chronic stress
* alters the immune response to influenza virus vaccines in older adults.
* can affect the functioning of the brain chemicals that regulate our moods.
* can also lead parents to feel depressed and anxious
  - result from ongoing family problems
  - be damaging, both psychologically and emotionally
  - harm the nervous system, thereby causing digestive and intestinal upsets
* can lead to conditions ripe for degeneration in the body
  - depression, nervous breakdowns and mental illness
  - many diseases, including heart disease, cancer, and depression
* causes poor posture, which in turn can cause multi-joint chronic pain
  - the immune system to become less effective
* comes when a person never sees a way out of a miserable situation.
* common cause of insomnia, as is depression.
* continuous response of sympathetic stimulation.
* definite threat to emotional and physical health.
* destroys bodies, minds and lives
  - memory cells and shuts down the immune system
* has a similar, but milder, effect on the body and mind.
* increases thyroid hormone production.
* induces the expression of inducible nitric oxide synthase in rat brain cortex.
* is associated with depression and suppressed immunity
  - clearly a state of accelerated molecular and cellular aging
  - prolonged, with no end in sight
* kills through suicide, violence, heart attack, stroke, and, perhaps, even cancer.
* leads sooner or later to so called burnout.
* leads to adrenal overactivity and calcium loss
  - overproduction of cortisol which has a damaging effect on the hippocampus
* modulates the immune response to a pneumococcal pneumonia vaccine.
* part of daily life in some inner cities.
* perceptual disorder.
* suppresses immune function.

Cold stress
* affects conversions in a linear manner.
* can cause drowsiness and difficulty speaking or moving
  - mastitis, an udder disease, and also cattle death
* condition similar to frostbite.

Compressive stress
* develops as an object in compression resists being shortened.
* happens at convergent plate boundaries where two plates move toward each other.
* is due to the squeezing action of a load.

Constant stress
* affects development of the brain.
* brings about changes in the hormones of the body.
* can cause fatigue followed by depression
  - hormonal imbalances within the body
  - lead to severe illness

Continual stress
* can block the body's natural ability to repair, regenerate, and protect itself.
* is placed on work behavior.

Daily stress
* has a tendency to build up in our bodies, causing toxins to undermine our health.
* serve as opportunities for parents to open the door of communication.

### stress:

Drought stress
* affects nut size and filling, as well as leaf and shoot growth.
* can also cause hardening.
* can cause abortion of small bolls on heavily fruited cotton
  - leaf scorch, leaf drop or even branch dieback
  - play a big role in that pre-infestation health
  - potentially reduce corn yield anytime during corn's developmental stages
  - predispose the plant to more serious mite injury
* causes bitter flavor
  - the stomates in the leaves to close
* increases damage to trees from both lerp psyllids and eucalyptus longhorned borers.
* influences gas-exchange responses of papaya leaves to rapid light transition.
* is severe on fields planted for forage
  - the biggest potential problem for home lawns in the summer
  - thought to aggravate centipedegrass decline
* kills seedlings, as does standing water.
* leading cause of fruit drop in figs.
* leads to oxidative injury and disruption of osmotic balance
  - thicker cuticles and a reduction or shut down in weed growth
* makes corn plants more susceptible to infections from diseases.
* selects for a suite of plant traits at root, stem and leaf level.
* thins out the desirable species, and disease pressure causes the lawn to thin.