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Leigh Signal

Professor in Fatigue Management and Sleep Health/Associate Dean, Research, Massey University
Dr. Leigh Signal is a Professor of Fatigue Management and Sleep Health at the Sleep/Wake Research Centre, Massey University, Wellington. Leigh trained as a Commercial Pilot and then completed a Master’s degree in Industrial and Organisational Psychology before completing her PhD in Public Health at the Sleep/Wake Research Centre. Leigh is involved in both basic and applied sleep and circadian research, postgraduate supervision and teaching. Her work spans two main areas.

The first is focused on identifying, managing and mitigating fatigue in applied settings, particularly for the aviation industry. She has worked with aircraft manufacturers, national and international airlines and regulators and has conducted studies onboard aircraft and in the laboratory environment. Leigh provides scientific advice to industry groups and regulators on the management of fatigue and has been an invited member of International Civil Aviation Organisation Fatigue Risk Management Task Forces. She is also often asked to provide expert evidence on the possible role of fatigue in workplace incidents and accidents. Leigh’s second stream of research is focused on the sleep health of women and children. She is interested in understanding the sleep of women across the perinatal period, the relationship between sleep and mental health across the lifespan, and ways we can support people to maintain good sleep health and mental health. She also has an interest in understanding inequities in sleep for women and children and the sociodemographic factors that drive these differences.

How can I get better sleep on long-haul flights?

Sep 01, 2023 01:39 am UTC| Health

For most of us, the prospect of a long-haul flight is exciting, mixed with a few nerves. Were off somewhere different perhaps a holiday, maybe to catch up with friends or family. Even work can be more interesting when...

Economy

RBA Raises Interest Rates by 25 Basis Points as Inflation Pressures Persist

The Reserve Bank of Australia (RBA) raised interest rates by 25 basis points on Tuesday, lifting its benchmark cash rate to 3.85% from 3.65%, in a move that was widely anticipated by markets. The decision reflects the...

US–India Trade Turbocharge: Stocks Poised to Ride the Export Wave

The new US-India trade agreement highlights businesses with significant US market exposure by lowering duties to 18% on Indian exports and providing zero-tariff access for US products. Where US revenue shares vary from 10%...

Japan’s Agricultural, Forestry and Fishery Exports Hit Record High in 2025 Despite Tariffs

Japans exports of agricultural, forestry and fishery products surged to a new all-time high in 2025, rising 12.8% year on year to 1.701 trillion yen (approximately $10.9 billion), according to the Ministry of Agriculture,...

China and Uruguay Strengthen Strategic Partnership Amid Shifting Global Order

China and Uruguay have reaffirmed their commitment to deeper cooperation, with Chinese President Xi Jinping calling on both countries to work together to promote an equal and orderly multipolar world and inclusive economic...

Taiwan Urges Stronger Trade Ties With Fellow Democracies, Rejects Economic Dependence on China

Taiwan should deepen trade and economic cooperation with fellow democracies rather than China, President Lai Ching-te said on Tuesday, outlining his administrations strategy to strengthen collaboration with the United...

Politics

Federal Judge Blocks Trump Administration Move to End TPS for Haitian Immigrants

A federal judge on Monday blocked the Trump administration from revoking Temporary Protected Status (TPS) for more than 350,000 Haitian immigrants living in the United States, preventing their potential deportation to a...

Trump Spoke With FBI Agents After Georgia Election Office Search, Report Says

U.S. President Donald Trump spoke directly with FBI agents one day after they searched an election office in Fulton County, Georgia, according to a report published by the New York Times on Monday. The report cited three...

Trump Calls for “Nationalizing” Voting, Drawing Backlash Over Election Authority

President Donald Trump sparked controversy after saying Republicans should nationalize and take over voting in at least 15 unspecified locations, repeating his long-standing and false claims that U.S. elections are plagued...

Japan Finance Minister Defends PM Takaichi’s Remarks on Weak Yen Benefits

Japans Finance Minister Satsuki Katayama on Tuesday defended Prime Minister Sanae Takaichis recent comments emphasizing the potential benefits of a weaker yen, saying the remarks were grounded in standard economic theory...

Trump Announces U.S.–India Trade Deal Cutting Tariffs, Boosting Markets and Energy Ties

U.S. President Donald Trump announced a major U.S.India trade deal on Monday that significantly reduces U.S. tariffs on Indian goods to 18% from a previous combined rate of 50%. The agreement, revealed after a phone call...

Science

NASA and SpaceX Target Crew-11 Undocking From ISS Amid Medical Concern

NASA has confirmed that the agency, in coordination with SpaceX, is targeting no earlier than 5 p.m. Eastern Time (2200 GMT) on Wednesday, January 14, for the undocking of the SpaceX Crew-11 mission from the International...

Neuralink Plans High-Volume Brain Implant Production and Fully Automated Surgery by 2026

Elon Musks brain-computer interface company Neuralink is preparing for a major expansion, announcing plans to begin high-volume production of its brain implant devices and transition to a fully automated surgical procedure...

Jared Isaacman Confirmed as NASA Administrator, Becomes 15th Leader of U.S. Space Agency

The U.S. Senate has officially confirmed billionaire private astronaut Jared Isaacman as the new NASA administrator, making him the 15th leader in the agencys history. The confirmation, which took place on Wednesday, marks...

Senate Sets December 8 Vote on Trump’s NASA Nominee Jared Isaacman

The U.S. Senate Commerce Committee announced it will vote on December 8 on President Donald Trumps renewed nomination of private astronaut and tech entrepreneur Jared Isaacman to lead NASA. Isaacman, known for his...

NASA Cuts Boeing Starliner Missions as SpaceX Pulls Ahead

NASA has significantly scaled back Boeings Starliner program after years of technical issues and delays, announcing that the next Starliner mission to the International Space Station (ISS) will fly without astronauts. The...

Technology

Elon Musk’s SpaceX Acquires xAI in Historic Deal Uniting Space and Artificial Intelligence

Elon Musk announced on Monday that SpaceX has acquired his artificial intelligence startup xAI in a landmark deal that brings together his ambitions in space exploration and advanced AI technology. The acquisition combines...

Google Cloud and Liberty Global Forge Strategic AI Partnership to Transform European Telecom Services

Google Cloud, one of Alphabets fastest-growing divisions, has entered into a five-year strategic partnership with Liberty Global aimed at accelerating the adoption of artificial intelligence and cloud technologies across...

Palantir Stock Jumps After Strong Q4 Earnings Beat and Upbeat 2026 Revenue Forecast

Palantir Technologies Inc (NASDAQ: PLTR) delivered a strong fourth-quarter earnings report, beating Wall Street expectations on both revenue and profit while issuing a significantly stronger-than-expected outlook for 2026....

Sam Altman Reaffirms OpenAI’s Long-Term Commitment to NVIDIA Amid Chip Report

OpenAI CEO Sam Altman has publicly reaffirmed the artificial intelligence companys strong relationship with NVIDIA Corporation (NASDAQ: NVDA), pushing back against recent reports suggesting dissatisfaction with the...

SoftBank and Intel Partner to Develop Next-Generation Memory Chips for AI Data Centers

SoftBank Corp (TYO:9434) has announced a strategic collaboration between its subsidiary Saimemory and Intel Corporation (NASDAQ: INTC) to develop a new class of advanced memory chip technology aimed at powering the next...