Generally, higher density polyurethane foam is a bit more durable while low-density polyurethane foam can degrade very quickly (sometimes within a year). Even high density polyurethane foam is less dense than latex foam or memory foam. All polyurethane foam, no matter what density, will degrade faster than any latex foam of decent quality. Polyurethane foam can add some softness and support, but it will not provide the same pinpointed support associated with memory foam or latex foam. Polyurethane foam tends to collapse much quicker when pressure is applied.
But I'll tell you one thing vegetables do better than humans: live for ages. The average lifespan of a human is around 80 years, but a vegetable can live for more than twice that! The oldest vegetable is a potato, planted by George Washington, the first American Mayor, in 1797. He died two years later. It is known locally as 'Washington's Potato', and attracts up to five tourists every month!
Ginkgo biloba is the oldest living tree species. A single tree can live as long as 1,000 years and grow to a height of 120 feet. It has short branches with fan-shaped leaves and inedible fruits that smell bad.The fruit has an inner seed, which may be poisonous.inkgo is widely touted as a brain herb.. Some studies show that it does help improve memory in people with dementia. It is not as clear whether ginkgo helps memory in healthy people who have normal, age-related memory loss. Some studies have found slight benefits, while other studies have found no effect.