Some of the biggest and most successful companies are opening new offices and their trendiest feature is focused on plants and insects. After moving to Seattle, Microsoft began to build its work spaces outdoors— and more specifically, in the trees, which are now compromised of 125 buildings.

This style of biophilic (亲自然的) design— an integration of natural materials, natural light, views of nature and other experiences of the natural world into the built environment—sounds pretty and good for the planet. But that hardly seems like enough of a reason for big companies to pay billions for biophilic designs. In fact, they are motivated by economics.

A study with employees of the Sacramento Municipal Utility District Call Center revealed that workers who had a view of the natural environment handled about 7% more calls than those who did not. The cost of reforming offices to give each employee an outdoor view was about $1, 000 per employee, while their increased productivity added up to $2,900 in increased income per employee per year.

Another study by the Think Wood campaign concludes that nature can have a beneficial effect on creativity, concentration and well-being. Not only do cool-looking biophilic offices help companies recruit (招聘) talent in an incredibly tight labor market, but they also nudge the new talent to perform better at work.

“Being more creative and flexible with our workspace allows us to be more creative and productive in our work and the products we create. It’s like a little getaway,” Said Bret Boulder, Head of Capital Assets.

Of course, small companies don’t have a spare couple of billion to spend on “park-like” outdoor offices. But the good news is that biophilic design is not necessarily expensive. Even just staring at a neighboring green roof for less than a minute has been shown to boost productivity.

Researchers have recently discovered that gut microbiome (肠道微生物群)—bacteria that grow within our body-helps the brain build important social skills.

According to a paper published in PLOS Biology in November, zebra fish were used to research subjects to test how a lack of microbiome could alter social skills. Zebra fish are social animals as even 2-week-old fish starts to hang out in groups of 4 to 12.

The experiment started with making a group of fish “germ-free” through their diet. The other group were injected with a healthy mix of gut bacteria after they were hatched (孵化出来). About 15 days later, the second group began swimming in groups while the “germ-free” group “shockingly, didn’t,” Judith Eisen, a co-author of the new research, said to Quanta Magazine.

The team then examined the fish’s brains, discovering obvious differences between the two groups. The ones who lacked the gut microbiome had more interconnections among the neurons (神经元) in their brains in charge of social behavior. It also led to fewer microglia, the neural immune cells (神经免疫细胞) that help clean the brain’s unwanted neurons. With less microglia to clear the brain’s neurons, social neurons were seen to have overgrown. This made the fish more cautious in social situations.

Scientists supposed that the bacteria could release a special chemical that crosses the blood-brain barrier to reach the brain directly. Or, the immune cells might move between the gut and the brain, sending messages. Although the experiments were only on fish, the findings can theoretically be applied to humans. The team wishes to explore how gut microbiome affects the human brain in the future, which may lead to solutions to mental health problems.

Perhaps many people who claim that they have “social phobia” (社交恐惧症) can blame their guts. However, social phobia, or social anxiety disorder, can be a serious illness if overlooked. According to the National Health Service in the UK, it is more than shyness but instead a constant fear of social situations. Patients may experience panic attacks which are an overwhelming fear and anxiety that last for a few minutes.

Food experts say washing could spread the germs (细菌) on your turkey in the kitchen sink to nearby food. But it’s been a challenge trying to convince cooks to stop washing uncooked poultry (禽肉). Germs that can make people sick are common in the body of healthy poultry and are legally allowed to be on raw turkey and chicken. The assumption is that nobody eats their poultry raw, and that thorough cooking will kill the germ.

The do-not-wash raw poultry advice from the USDA is relatively new and perhaps hasn’t caught on because it goes against the common belief that washing makes things clean, said Chapman. Benjamin Chapman, a study author and food safety expert at North Carolina State University, said the natural tendency to wash raw poultry goes back at least decades when people relied more on visual clues to spot problems with poultry. Meanwhile, washing hands and surfaces are also important.

But food preparation is a complicated act, and germs from poultry can be spread even if it’s not washed, especially when birds are removed from packaging.

The USDA-funded study stresses that point. Researchers sprayed raw chicken with a harmless strain of E. coli (大肠杆菌) and watched volunteer cooks at test kitchens. Among those who washed their raw chicken, about a quarter ended up spreading the germ to their cabbage. But even some of those who did not wash the chicken got germs on the cabbage. And there are other opportunities for germs to survive on turkeys: melting and cooking.

To ensure a bird is thoroughly cooked, they say to use a thermometer (温度计) to check that the deepest and thickest parts of it have reached 165 degrees. Even after the meal is cooked, you aren’t out of the danger zone. To keep turkeys and other leftovers safe, experts say they should be refrigerated after two hours.