H. Health and Population

H. Health and Population [Elements of] H codes for health; HP for population

HD. Disease [Types of]

Viral, bacterial, environmental

[Among the key diseases we would want to capture are Alzheimers, allergies, asthma, celiac, diabetes, hepatitis, hiv-aids, multiple sclerosis, and parkinsons]

HE. Exercise, recreation

aerobics, weights, jog, bench press, callisthenics, gymnastics, yoga, stretch, push-up, chin-up, etc.

exercising particular body parts can be captured through links to particular body parts

HI. Injuries, Accidents

HN. Nutrition [Elements of]

[Diverse nutritional needs (defined physiologically): carbohydrate, vitamin, protein, etc.]

HR Respiration [Need again defined physiologically]

HS Sleep [sleeping in is increased sleep] [Stay someplace is sleep somewhere temporary]

[Note that H is distinct from but should often be linked to GM.]

HP. Population [Density is HP ~ N1]

HA. Age Distribution [types of]

HF. Fertility [Elements of] [Birth rate is HF ~ HP]

0. Birth

Fecundity

Menarche

Birth intervals , deviation from maximum [reasons will be captured through causal links.]

Hatching of an egg

HG. Migration [types of]

1. International

2. Temporary

3. Nomadic

4. Permanent

5. Tourism, Vacation [Cruise is associated with boat]

HM. Mortality [Death rate is HM ~ HP]

0. Death

1. Life expectancy

Causes of death (various) [types of] [These can be captured by links to disease, accident, crime/war, and nutrition.]

[HA, HF, HG, and HM are logically subclasses of HP, but are treated here in a manner that both conserves notational space and reflects the fact that ‘population’ merits a one letter designator.]