Table 1. Descriptive statistics.

	Mean	SD	N
Happiness score on a scale 1–5 (2001)	4.219	0.858	1905
Height (1980)	142.045	25.746	1905
Body fat (1980)	17.394	7.466	1905
Pulse (1980)	80.926	14.693	1905
Systolic blood pressure (1980)	112.754	11.937	1905
Diastolic blood pressure (1980)	73.521	11.377	1905
Log of triglycerides (1980)	-0.322	0.323	1905
Insulin (1980)	9.635	5.844	1905
Log of creatinine (1980)	2.015	0.589	1905
High education (2001)	0.223	0.416	1905
Log of earnings (2001)	8.637	3.019	1905
Log of family income (1980)	9.326	0.643	1783
Fruit and vegetable consumption per 1000 kcal (1980)	162.567	110.678	945
Carbohydrates consumption per 1000 kcal (1980)	123.922	15.938	945
Physical activity on a scale 1–7 (1980)	5.487	1.486	1298