内容摘要："Our pockets are nowhere near as deep as Night and Day," he said.

"Our pockets are nowhere near as deep as Night and Day," he said.

Data on the number of deaths in air accidents globally also shows that there has been a decrease over the same period, albeit with spikes in some years reflecting major air disasters.In 2014, two such events contributed to a significant spike.

In March, Malaysian Airlines flight MH370 disappeared as it travelled from Kuala Lumpur to Beijing with 239 people on board. In July, another Malaysian Airlines plane, MH17, was shot down by a Russian-made missile over eastern Ukraine, killing almost 300.Data sets such as this are inclined to see sudden, large fluctuations, Prof Sir David Spiegelhalter, Emeritus Professor of Statistics at the University of Cambridge, told BBC Verify."If you count fatalities rather than accidents it's bound to be extremely volatile and sensitive to a single large accident," he said.

"Random events do not occur evenly - they tend to cluster. So unfortunately we can expect aircraft accidents to be appear to be connected, even when they are not."Regarding the series of high-profile accidents over the past few months, Ismo Aaltonen, formerly Finland's chief air disaster investigator, told BBC Verify they are not an indication of a decline in aircraft safety.

"It's very unlucky that we had this period of many different kind of accidents, but people should not draw any conclusions based on this because they are such different cases," he said.

He noted that some incidents over the past few months were unforeseeable, citing an Azerbaijan Airlines flight which crashed in Kazakhstan in December afterWhile Nicholas is chasing in-person support, he has found using Wysa has some benefits.

"As someone with autism, I'm not particularly great with interaction in person. [I find] speaking to a computer is much better."The app allows patients to self-refer for mental health support, and offers tools and coping strategies such as a chat function, breathing exercises and guided meditation while they wait to be seen by a human therapist, and can also be used as a standalone self-help tool.

Wysa stresses that its service is designed for people experiencing low mood, stress or anxiety rather than abuse and severe mental health conditions. It has in-built crisis and escalation pathways whereby users are signposted to helplines or can send for help directly if they show signs of self-harm or suicidal ideation.For people with suicidal thoughts, human support on the free Samaritans helpline is available 24/7.