Confessions from our challengers.

A pharmacy mistakenly dispensed zinc capsules instead of sodium bicarbonate for a boy with a kidney disorder.

A 96-year-old woman has been found to have died from being given high blood pressure medication by mistake at a rest home.

A courageous mother who wed and gave birth after a bleak cancer diagnosis has died overnight.

When I first moved here from the UK I didn't get the bring-a-plate thing. Not only did I not get it, I hated it, writes Louise Thompson.

A recent report stated rich people live longer than poor people. What's their secret?

How the "Hello" singer and mother of one dropped 14 kilograms.

We're all madly trying to achieve more and earn more. But living simply is essential to being able to enjoy abundance, minus the stress.

Turmeric has been found to have anti-carcinogenic activity. Current evidence suggests it is best in a preventative role.

Simone Anderson Pretscherer, 24, from Auckland, went from 168kgs to 83kgs in just 11 months.

The nanny and make-up artist has now lost a total of 92kg and has set up a website to inspire others in their battle with the bulge.

Terminally ill New Zealander Andy Rahman is set to tick the biggest item off his bucket list - getting married to the love of his life.

Lauded as a revolution in teeth cleaning, electric brushes may do more damage than good.

As a teen, I couldn't have explained why, because I've only just figured it out, writes Verity Johnson.

After beating cancer Jake Bailey doesn't want to let what he's been through define him: "For me, this is just an opportunity. It's a stepping stone to the future."

WATCH: The Christchurch Boys High School senior has vowed to use his experiences in beating cancer to help other young people.

The seemingly insignificant ailments that are actually common symptoms of the world's biggest killer.

EXCLUSIVE: Inspirational teen tells Mike Hosking he's taking it one day at a time since beating cancer.

CDC Director Thomas Frieden told a congressional committee that the U.S. should expect to see "significant numbers" of infections of the Zika virus in U.S. territories and "continued spread around the world".

New Zealand fathers-to-be are nearly twice as likely as their pregnant partners to be undecided about immunisation before their child is born.

She's a young woman battling the big C but is determined to ease the way for others in their 20s facing a similar diagnosis.

Losing extra kilos through good eating is more beneficial than exercise alone.

Concern over a high heartbeat reading was thought to be a fault with the device.

Jet lag can be prevented by "hacking" into the body's circadian rhythm during sleep using a flashing alarm clock, Stanford University has discovered.

It seems our minds are geared to be able to pay more attention when the days are long.