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.
A 5K runner might do this session for 30 minutes, a marathoner for upwards of 2 hours. You can of course make this much simpler and have some workouts with longer periods at one pace, Bakken says. You'll be surprised how much better you'll handle this type of work after two to three workouts..