Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:给定下面提供的英文文章，生成剪短的几句能正确归纳表述文章含义的中文摘要性句子。

### Input:Experts have known for decades that gardening improves our health, making us fitter and happier. Now a public experiment is to be carried out to try to find out exactly which plants have the biggest impact on our mood. Using facial recognition technology, it will monitor the reactions of 150,000 visitors as they look at different plants at the Chelsea Flower Show in May. Happiness test: Using facial recognition technology, the experiment will monitor the reactions of 150,000 visitors as they look at different plants at the Chelsea Flower Show in May (file picture) It is hoped the results will determine which varieties of plants make people the happiest, according to their age and gender. The findings will be used to influence the work of charities which use gardening as therapy for those with disabilities. TV gardener NAME_1 of ITV show Love Your Garden, who is designing the Chelsea project, said: ‘It’s amazing how much sense of well-being and happiness the sight of a plant can bring. ‘We’re hoping to identify the best-loved plant, be it the sight of red roses on Valentines, a field of sunflowers or even the magic of a Christmas tree. Plants lift our hearts just by the sight of them. We think there will be real differences between age groups and gender. It’s a fascinating experiment and a real talking point.’ . The exhibit, which is being run with gardening charity Thrive and the Horticultural Trades Association, will feature 20 popular plants chosen by an online survey. Cameras will monitor eye contact, physical gestures and facial emotions to gauge visitor reaction to each plant. It is hoped the results will determine which varieties of plants make people the happiest, according to their age and gender. Above, daffodil 'Georgie Boy' named after NAME_2 . Doctors have long known of the impact of gardening on health. Last November a Government health adviser even suggested that doctors should start prescribing gardening courses on the NHS. NAME_3, who advises Public Health England on physical activity, claimed every £1 spent on access to community outdoor schemes could save the health service £5 in other treatments. NAME_4 said: ‘We are programmed as humans to be hunter gatherers, to live outdoors, we are not really adapted to urban life. A dose of green space, really co Provide your response in exactly 4 paragraphs (separated nearby paragraphs with 3 aterisk symbols ***).
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