Trouble with Lichen

"What if humans discovered the secret to prolonged life? Francis Saxover and Diana Brackley, two biochemists investigating a rare lichen, separately discover that it has a remarkable property: It slows the aging process almost to a halt. Francis, realizing the horrifying implications of an ever-youthful wealthy elite, decides to keep his findings a secret. But the younger and more daring Diana sees an opportunity to overturn the male status quo and free women from the career-versus-children binary--in short, a chance to remake the world."--Provided by publisher.

John Wyndham