Psychology | Personality

The fusion of two sisters into a single woman suggests that human identity is not in our DNA | Science | EL PAÍS Englis

The biologist Alfonso Martínez Arias defends that genes do not define the uniqueness of a person, citing the example of Karen Keegan, who has two genomes

Psychology | Psychology

Improving sibling relationships

Psychologists’ research shows that long-lasting relationships are more critical than many people think and offers insights on how to improve them.

Miscellaneous | Interesting & Helpful Information

Give Thanks: Adult Siblings Can Make Us Healthier And Happier

Sibling relationships are usually the longest-lived family ties, and most adults say they're close to their siblings. That closeness can shelter and sustain us through life's perils and joys.