The spurge family contains a large variety of phytotoxins, often with a milky sap or latex. 5,735 Found mostly in the tropics, distinctive leaves typically with strong longitudinal veins and tertiary veins at right angles to the midrib.
Most marathon training plans range from 12 to 20 weeks. Beginning marathoners should aim to build their weekly mileage up to 50 miles over the four months leading up to race day. Three-to-five runs per week is sufficient. The vast majority of these runs should be done at a relaxed pace.
The key to successful marathon training is consistently putting in enough weekly mileage to get your body accustomed to running for long periods of time. Newer runners may start with 15 to 20 miles per week total and gradually build to a peak week of 35 to 40 miles.