Uno studio condotto a Harvard, che prosegue da 75 anni:

“The happiness books say, ‘Try happiness. You’ll like it a lot more than misery’—which is perfectly true,” he told them. But why, he asked, do people tell psychologists they’d cross the street to avoid someone who had given them a compliment the previous day? […]

To illustrate his point, he told a story about one of his “prize” Grant Study men, a doctor and well-loved husband. “On his 70th birthday,” Vaillant said, “when he retired from the faculty of medicine, his wife got hold of his patient list and secretly wrote to many of his longest-running patients, ‘Would you write a letter of appreciation?’ And back came 100 single-spaced, desperately loving letters—often with pictures attached. And she put them in a lovely presentation box covered with Thai silk, and gave it to him.” Eight years later, Vaillant interviewed the man, who proudly pulled the box down from his shelf. “George, I don’t know what you’re going to make of this,” the man said, as he began to cry, “but I’ve never read it.” “It’s very hard,” Vaillant said, “for most of us to tolerate being loved.”

Sentirsi soli (più che l’essere soli) non fa bene. Judith Shulevitz sul New Republic:

Psychobiologists can now show that loneliness sends misleading hormonal signals, rejiggers the molecules on genes that govern behavior, and wrenches a slew of other systems out of whack. They have proved that long-lasting loneliness not only makes you sick; it can kill you. Emotional isolation is ranked as high a risk factor for mortality as smoking. A partial list of the physical diseases thought to be caused or exacerbated by loneliness would include Alzheimer’s, obesity, diabetes, high blood pressure, heart disease, neurodegenerative diseases, and even cancer—tumors can metastasize faster in lonely people.

(Per approfondire, citato più volte nell’articolo, Loneliness di John Cacioppo)

Pare che non ti renda solo magnifico, ma anche più in salute:

A study from the University of Southern Queensland, published in the Radiation Protection Dosimetry journal, found that beards block 90 to 95 percent of UV rays, thereby slowing the aging process and reducing the risk of skin cancer. Got asthma? Pollens and dust simply get stuck in that lustrous facial hair. Additionally, all that hair retains moisture and protects against the wind, keeping you looking young and fresh-faced. What’s more, shaving is usually the cause of ingrown hairs and bacterial infections that lead to acne.

Wittgenstein, The Blue Book:

Our craving for generality has [as one] source … our preoccupation with the method of science. I mean the method of reducing the explanation of natural phenomena to the smallest possible number of primitive natural laws; and, in mathematics, of unifying the treatment of different topics by using a generalization. Philosophers constantly see the method of science before their eyes, and are irresistibly tempted to ask and answer in the way science does. This tendency is the real source of metaphysics, and leads the philosopher into complete darkness. I want to say here that it can never be our job to reduce anything to anything, or to explain anything. Philosophy really is “purely descriptive.