And they are linked to a lower risk of cardiovascular disease.
A heart-healthy diet that keeps clogged arteries from limiting the brain's supply of oxygen and nutrients has been linked to a lower risk of dementia.
A 2013 study in the journal PLOS ONE found that marriage, among other factors, was linked to a lower risk of mild cognitive impairment and dementia.
The elements of the diet most closely linked to a lower risk of depression were fruits and nuts, legumes and a high ratio of monounsaturated to saturated fats, the study found.
She said that while a healthy balanced diet including aspects of a typical Mediterranean diet is linked to a lower risk of dementia, "it's often difficult to drill down to the particular aspect of diet, if there is one, that may be most beneficial".
It is associated to a more feasible procedure, that is less invasive and linked to a lower degree of complications.
It said more sleep was linked to a lower weight, which could have important public health consequences.
Becoming a parent was linked to a lower likelihood of being a current drinker, fewer alcoholic drinks, and less frequent binge drinking.
Since studies show that caffeine consumption is linked to a lower incidence of the disease, he doubled his coffee drinking to two mugs a day.
Eating plenty of oily fish, such as mackerel, salmon and sardines, will also provide this important fatty acid, which has been linked to a lower risk of heart disease.
Compared with no exercise, yoga had significant benefits - it was linked to a lower risk of obesity, high blood pressure and raised cholesterol, the European Journal of Preventive Cardiology reports.
