Which hormone is released by the pituitary gland that induces labour contractions and is released during social bonding such as hugging?

Which hormone is released by the pituitary gland that induces labour contractions and is released during social bonding such as hugging?

• A. Oxytocin
• B. Adrenaline
• C. Testosterone
• D. Dopamine

Answer: (A)

Oxytocin is the hormone that fits both roles. It’s released from the posterior pituitary and triggers uterine contractions during labor, working in a positive feedback loop as the cervix stretches to push labor forward. It’s also linked to social bonding: when people hug or engage in close contact, oxytocin levels rise and promote trust and affiliative behavior. Context helps: oxytocin is produced in the hypothalamus and stored for release by the pituitary, which is why it’s often called the love or bonding hormone. The other options don’t align with these specific functions or the source: adrenaline rushes the body for fight-or-flight, testosterone is a sex hormone linked to male characteristics, and dopamine is a brain chemical tied to reward rather than the childbirth and bonding effects described.

Oxytocin is the hormone that fits both roles. It’s released from the posterior pituitary and triggers uterine contractions during labor, working in a positive feedback loop as the cervix stretches to push labor forward. It’s also linked to social bonding: when people hug or engage in close contact, oxytocin levels rise and promote trust and affiliative behavior. Context helps: oxytocin is produced in the hypothalamus and stored for release by the pituitary, which is why it’s often called the love or bonding hormone. The other options don’t align with these specific functions or the source: adrenaline rushes the body for fight-or-flight, testosterone is a sex hormone linked to male characteristics, and dopamine is a brain chemical tied to reward rather than the childbirth and bonding effects described.